PODCAST · technology
Defense in Depth
by David Spark, Steve Zalewski, Geoff Belknap
Defense in Depth promises clear talk on cybersecurity's most controversial and confusing debates. Once a week we choose one controversial and popular cybersecurity debate and use the InfoSec community's insights to lead our discussion.
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361
Building Resilience for Microsoft 365
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Brett Conlon, CISO, American Century Investments. Joining us is our sponsored guest, Simon Hughes, vp of field security at CoreView. In this episode: Ecosystem, not platform Beyond backup, into resilience What survives the restore Toward a digital twin A huge thanks to our sponsor, CoreView Attackers don't break into Microsoft 365. They log in and reconfigure it. When tenant configurations drift or get tampered with, recovery can take weeks and missed settings can reopen the door. The Cyber Resilience Framework for Microsoft 365 covers the five pillars, harden, govern, detect, respond, recover, and shows exactly where today's tools leave gaps. Download the free practical guide
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360
Recommendations to Reboot the Security Vendor Pitch
All links and images can be found on CISO Series Check out this post by Val Tsanev of CyberRisk Alliance, for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining is Jill Rhodes, svp, CISO, Option Care Health. In this episode: The ten-minute test Relevance beats format Price the problem or lose the room Whose meeting is it, really A huge thanks to our sponsor, Teleskope Most DSPMs stop at finding the risk. Teleskope fixes this: it automatically finds sensitive data, including IP documents or board decks, and remediates exposure across cloud, SaaS, and AI environments natively, with human-in-the-loop controls, improving your team's efficiency tenfold. Trusted by Ramp, Polymarket, and Chevron Phillips, and more. teleskope.ai
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359
Market Confusion Is Responsible for the Biggest Gaps in Cybersecurity
All links and images can be found on CISO Series Check out this post from Joe Head of RELEX Solutions for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining is Mary Rose Martinez, CISO, and vp of digital technology services, Marathon Petroleum Corporation. In this episode: Left behind A hypothetical sale The philosophy problem Stop shifting the problems A huge thanks to our sponsor, ActiveState ActiveState gives security and engineering teams a single governed source for open source software. With 79 million components built from source, continuously remediated, and delivered directly into the tools teams already use, ActiveState eliminates the CVE backlog and the developer toil that comes with it. Companies see a 60 to 99% reduction in CVEs and reclaim up to 30% of developer time. Learn more at activestate.com.
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358
Will AI Replace Detection Roles in Cybersecurity?
All links and images can be found on CISO Series Check out this post from Caleb Sima of Whiterabbit for the discussion that is the basis of our conversation on this week's episode co-hosted David Spark, the producer of CISO Series, and Yaron Levi, CISO, Dolby. Joining is Adrian Ludwig, CSO, Rippling. In this episode: The messy middle The automatable part Where automation stops The influence gap A huge thanks to our sponsor, ThreatLocker ThreatLocker delivers Zero Trust Network Access and Zero Trust Cloud Access that verifies both user and device before granting access to specific applications. No broad access, nothing exposed, and no reliance on credentials alone. It's a smarter way to control access and reduce risk. Learn more at ThreatLocker.com/CISO.
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357
What Makes a Good AI Security Deployment?
What Makes a Good AI Security Deployment? All links and images can be found on CISO Series Check out this post by Chris Matthews of UpGuard for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Peter Liebert, CISO, Salesloft & Clari. In this episode: Non-determinism changes everything The foundation problem Nobody owns the whole problem The authorization gap A huge thanks to our sponsor, CoreView Attackers don't break into Microsoft 365. They log in and reconfigure it. When tenant configurations drift or get tampered with, recovery can take weeks and missed settings can reopen the door. The Cyber Resilience Framework for Microsoft 365 covers the five pillars, harden, govern, detect, respond, recover, and shows exactly where today's tools leave gaps. Download the free practical guide
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356
The Office Politics of Remediation
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Dan Walsh, CISO, Datavant. Joining is our sponsored guest, Elizabeth Nammour, founder and CEO, Teleskope. In this episode: Data ownership before automation A shared vocabulary for agent risk Maturing from crawl to run Trust earns automation its place A huge thanks to our sponsor, Teleskope Most DSPMs stop at finding the risk. Teleskope fixes this: it automatically finds sensitive data, including IP documents or board decks, and remediates exposure across cloud, SaaS, and AI environments natively, with human-in-the-loop controls, improving your team's efficiency tenfold. Trusted by Ramp, Polymarket, and Chevron Phillips, and more. teleskope.ai
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355
Why is Preventative Security So Difficult?
All links and images can be found on CISO Series Prevention in cybersecurity is a lot like flossing: everyone knows they should do it, but few do it enough. What's stopping us? Check out this post by Ross Haleliuk of Venture in Security for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Deneen DeFiore, vice president & chief information security officer, United Airlines. In this episode: The sponsorship gap One strike and you're out Policy without position Prevention isn't static A huge thanks to our sponsor, CoreView Attackers don't break into Microsoft 365. They log in and reconfigure it. When tenant configurations drift or get tampered with, recovery can take weeks and missed settings can reopen the door. The Cyber Resilience Framework for Microsoft 365 covers the five pillars, harden, govern, detect, respond, recover, and shows exactly where today's tools leave gaps. Download the free practical guide
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354
Identity and Access Management (IAM) in an Agentic AI World
All links and images can be found on CISO Series Check out this post by Tomás Maldonado, CISO, NFL, for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Yaron Levi, CISO, Dolby. Joining is Will Gregorian, vp of information technology & security, Galileo Medical. In this episode: From who to what The manipulation problem Cryptographic accountability The audit gap A huge thanks to our sponsor, ActiveState ActiveState gives security and engineering teams a single governed source for open source software. With 79 million components built from source, continuously remediated, and delivered directly into the tools teams already use, ActiveState eliminates the CVE backlog and the developer toil that comes with it. Companies see a 60 to 99% reduction in CVEs and reclaim up to 30% of developer time. Learn more at ActiveState.com.
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353
Protecting AI Agents in O365 and Google Workspace
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining is their sponsored guest, Rajan Kapoor, vp, security, Material Security. In this episode: Pre-existing conditions Architecture over rollout Access isn't legitimacy Data has a half-life A huge thanks to our sponsor, Material Security Legacy email security only watches the door. Material protects your entire cloud workspace—email, files, and accounts—as one ecosystem. It's more coverage for less than the cost of a legacy SEG. One price, no surprises: just security that covers the whole surface area. Learn more at material.security.
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352
Humans Are Bottleneck in a Machine-Speed World
All links and images can be found on CISO Series We're evolving fast to secure AI. But are we evolving fast enough to secure WITH AI? Check out this post by Rinki Sethi, CSO, Upwind Security, for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Howard Holton, former CEO, GigaOm. Joining is Adam Glick, CSO, PSG Equity. In this episode: Human-in-the-loop math Should machines decide at all From assistant to autonomous Redefining the security role A huge thanks to our sponsor, Palo Alto Networks Cortex Cloud unifies code, cloud, and SOC on a single data, risk, and control plane — giving teams the context, workflows, and agentic intelligence to turn risk into resolution. Native AI agents investigate and act within enterprise guardrails, delivering real-time protection from workload to network edge. Cloud security that outpaces machine-speed threats. Visit paloaltonetworks.com/cortex/cloud.
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Even With All These Security Vendors We Still Have Glaring Gaps
All links and images can be found on CISO Series There are thousands of cybersecurity vendors across categories. If there's a gap in the market, it's likely not for technical reasons. So, how do you actually find vendors that are a good fit rather than one that just meets technical requirements? Check out this post by Joe Head of REFLEX Solutions for the discussion that is the basis of our conversation on this week's episode, co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Ajit Girn, CIO, Employment Development Department (EDD). In this episode: Built for vendors, not users Signal versus noise Priced out The elegance gap A huge thanks to our sponsor, ThreatLocker ThreatLocker takes a deny-by-default approach to endpoint security — controlling what applications can run, what can access data, and what can elevate privileges. Used by organizations that want to reduce attack surface without relying on detection alone. Learn more at threatlocker.com/ciso.
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350
Is the "Attackers Only Need to Be Right Once" a Misnomer?
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and George Finney, CISO, University of Texas System. Joining is Sean Walls, CISO, Bob's Discount Furniture. In this episode: Asymmetric accounting Sometimes it really is that easy The spirit of the saying The cheapest way in A huge thanks to our sponsor, Native Security Native is the Cloud Security Control Plane. It helps enterprises enforce secure-by-design architecture across multi-cloud environments by translating security intent into the cloud provider's built-in controls, previewing impact before rollout, and keeping enforcement aligned as the environment changes.
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349
What It Takes To Be Successful in Cyber Media
What It Takes To Be Successful in Cyber Media All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Dave Bittner, producer and host, The CyberWire. Joining is Graham Cluley, host of Smashing Security podcast and Leo Laporte, founder of TWiT (This Week in Tech) and host of Security Now podcast. In this episode: Format follows function The decision gap Practitioner fingerprints Beyond the news cycle A huge thanks to our sponsor, Palo Alto Networks Cortex Cloud unifies code, cloud, and SOC on a single data, risk, and control plane — giving teams the context, workflows, and agentic intelligence to turn risk into resolution. Native AI agents investigate and act within enterprise guardrails, delivering real-time protection from workload to network edge. Cloud security that outpaces machine-speed threats. Learn more at paloaltonetworks.com/cortex/cloud/demo.
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348
CISOs Buy For Selfish and Politically Risk-Averse Reasons (Not Because Your Product is the Best)
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Howard Holton, CEO, GigaOm. Joining is Tyler King, senior director - threat operations and response, Sinclair. In this episode: Career insurance In the trenches together Who are you actually selling to? Common sense, uncommon in sales A huge thanks to our sponsor, Material Security Legacy email security only watches the door. Material protects your entire cloud workspace—email, files, and accounts—as one ecosystem. It's more coverage for less than the cost of a legacy SEG. One price, no surprises: just security that covers the whole surface area. Learn more at material.security.
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347
Has Cybersecurity Become a Cult?
All links and images can be found on CISO Series We think of cybersecurity as a discipline. But when do ideas like best practices and NIST frameworks change into a system of belief? Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Davi Ottenheimer, principal, Flying Penguin. Joining is Joshua Copeland, director of security, Crescendo. In this episode: Tools, not religion The case for structured discipline The management problem underneath Fix the damn holes A huge thanks to our sponsor, ThreatLocker ThreatLocker delivers Zero Trust Network Access and Zero Trust Cloud Access that verifies both user and device before granting access to specific applications. No broad access, nothing exposed, and no reliance on credentials alone. It's a smarter way to control access and reduce risk. Learn more at ThreatLocker.com/CISO.
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346
What Does the Next Generation of Cloud Security Look Like?
All links and images can be found on CISO Series We know human-paced security controls can't be applied to autonomous AI agents. So what needs to change with CNAPP and cloud security? Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our sponsored guest, Dan Benjamin, vp product - data, identity, and AI security, Palo Alto Networks. In this episode: The detection ceiling A category gap, not a feature gap Resilience by design An insider threat with no face A huge thanks to our sponsor, Palo Alto Networks Cortex Cloud unifies code, cloud, and SOC on a single data, risk, and control plane — giving teams the context, workflows, and agentic intelligence to turn risk into resolution. Native AI agents investigate and act within enterprise guardrails, delivering real-time protection from workload to network edge. Cloud security that outpaces machine-speed threats. Visit Palo Alto Networks and search cortex cloud.
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345
The Dangers of Picking the Wrong Vendor
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our guest, Paul Guerra. In this episode: Read the contract How vendors win before the evaluation ends The fallout The real cost A huge thanks to our sponsor, Native Security Native makes secure-by-design inherent to how the cloud operates. It's the control plane for built-in cloud security, unifying and governing native controls, so security intent is defined once and applied consistently across providers. Learn more at native.security.
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344
Why Cyber Startups Need CISO Advisors
All links and images can be found on CISO Series All security startups will tell you they talk to potential customers. The problem is that you limit your development when you only talk to CISOs who might buy. It's not the same guidance you'll get from a CISO who advises. Check out this post by Val Tsanev of the Cyber Risk Alliance for the discussion that is the basis of our conversation. This week's episode is co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Steve Jensen, CISO, University of Maine System. In this episode: Building for whom? The only feedback loop that matters Valid, but for whom? Rethink the advisor roster A huge thanks to our sponsor, Material Security Legacy email security only watches the door. Material protects your entire cloud workspace—email, files, and accounts—as one ecosystem. It's more coverage for less than the cost of a legacy SEG. One price, no surprises: just security that covers the whole surface area. Learn more at material.security.
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343
Breaking the Reactive Cycle of Cybersecurity
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our sponsored guest, Rob Allen. In this episode: The vulnerable stack Changing the structural economics Change the terrain The cost-benefit equation A huge thanks to our sponsor, ThreatLocker ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.
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342
How Do You Know If Your Backups Will Survive a Ransomware Attack?
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our sponsored guest, Heath Renfrow, co-founder, Fenix24. In this episode: Knowing which systems to save first Recovery is a business conversation, not an IT ticket Not all systems are created equal Recovery knowledge as a governed asset A huge thanks to our sponsor, Fenix24 Fenix24 is the world's leading breach recovery firm, providing rapid ransomware restoration, full asset visibility, and threat informed hardening. Alongside expert recovery services, Fenix24 delivers ongoing managed protection that secures backups, infrastructure, and critical controls, helping organizations stay resilient, recoverable, and prepared for modern cyber threats. Learn more at fenix24.com.
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341
What Makes a Successful Security Vendor Demo?
What Makes a Successful Security Vendor Demo? All links and images can be found on CISO Series. Check out this post from Adam Palmer for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Geoff Belknap. Joining is Ken Beasley, BISO, Kaiser Permanente. In this episode: Show me the problem, not the product Walking in blind Discovery is the demo Define the use case, set the clock A huge thanks to our sponsor, Fenix24 Fenix24 is the world's leading breach recovery firm, providing rapid ransomware restoration, full asset visibility, and threat informed hardening. Alongside expert recovery services, Fenix24 delivers ongoing managed protection that secures backups, infrastructure, and critical controls, helping organizations stay resilient, recoverable, and prepared for modern cyber threats. Learn more at fenix24.com.
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340
Should You Use Native or 3rd Party Cloud Management Tools?
Should You Use Native or 3rd Party Cloud Management Tools? All links and images can be found on CISO Series. Check out this post from Steve Zalewski for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is their sponsored guest, Gal Ordo, co-founder and CPO, Native. In this episode: More tools, more problems A gap in design Catching what slips through Competence over complexity A huge thanks to our sponsor, Native Security Native makes secure-by-design inherent to how the cloud operates. It's the control plane for built-in cloud security, unifying and governing native controls, so security intent is defined once and applied consistently across providers. Learn more at native.security.
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How Should We Measure the Performance of a CISO?
How Should We Measure the Performance of a CISO? All links and images can be found on CISO Series. Check out this post from the cybersecurity subreddit for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is Jason Richards, vp, information security, CHG Healthcare. In this episode: Likability as a career strategy The storytelling gap How the math actually gets done The unofficial scorecard A huge thanks to our sponsor, ThreatLocker ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.
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338
How to Be Less Busy and More Effective in Cyber
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Ross Young, co-host, CISO Tradecraft. Joining them is Dan Walsh, CISO, Datavant. Be sure to check out Ross's book Cybersecurity's Dirty Secret: Why Most Budgets Go to Waste. In this episode: Patterns hiding in plain sight Activity vs. advancement The human cost Frameworks about frameworks A huge thanks to our sponsor, Fenix24 Fenix24 is the world's leading breach recovery firm, providing rapid ransomware restoration, full asset visibility, and threat informed hardening. Alongside expert recovery services, Fenix24 delivers ongoing managed protection that secures backups, infrastructure, and critical controls, helping organizations stay resilient, recoverable, and prepared for modern cyber threats. Learn more at fenix24.com.
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337
How to Engage With a CISO When They Express Interest
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode, co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining them is Adam Palmer, CISO, First Hawaiian Bank. Be sure to check out David's book, Three Feet from Seven Figures: One-on-One Engagement Techniques to Qualify More Leads at Trade Shows. In this episode: Lead with insight, not persuasion Recognize the opportunity when it arrives Strategy over features Keep it efficient A huge thanks to our sponsor, Endor Labs Discover how AI coding agents are reshaping software supply chain risk in the State of Dependency Management. Original research from Endor Labs shows 49% of dependency versions have known vulnerabilities (and that 34% don't actually exist). Get the report to see how "shadow AI" is reshaping attack surfaces. Learn more at endorlabs.com.
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336
Who is Responsible for the Conflict Between Security and Developers?
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode, co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining is their sponsored guest, Matt Brown, solutions architect, Endor Labs. In this episode: The development disconnect Functionality first, security second The incentive problem Speed as the common ground A huge thanks to our sponsor, Endor Labs Discover how AI coding agents are reshaping software supply chain risk in the State of Dependency Management. Original research from Endor Labs shows 49% of dependency versions have known vulnerabilities (and that 34% don't actually exist). Get the report to see how "shadow AI" is reshaping attack surfaces. Learn more at www.endorlabs.com.
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335
Are Your Security Tools Creating More Work for Your Team?
All links and images can be found on CISO Series. Check out this post by Caleb Sima for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Evan McHenry, CISO, Robinhood. In this episode: The information paradox Setting realistic expectations Prioritization over noise The cart before the horse Huge thanks to our sponsor, Endor Labs Discover how AI coding agents are reshaping software supply chain risk in the State of Dependency Management. Original research from Endor Labs shows 49% of dependency versions have known vulnerabilities (and that 34% don't actually exist). Get the report to see how "shadow AI" is reshaping attack surfaces.
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334
Why Overpromising is a Dangerous Sales Tactic
All links and images can be found on CISO Series. Check out this post, CISO, Upwind Security, for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Geoff Belknap, CISO, LinkedIn. Joining us is Octavia Howell, vp and CISO, Equifax Canada. In this episode: Beyond the quota The hard truth beats the polished bluff Paying for someone else's mistakes Reducing friction, increasing trust Huge thanks to our sponsor, ThreatLocker ThreatLocker takes a deny-by-default approach to endpoint security — controlling what applications can run, what can access data, and what can elevate privileges. Used by organizations that want to reduce attack surface without relying on detection alone. Learn more at threatlocker.com/ciso.
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333
Should You Phish Your Employees or Not?
All links and images can be found on CISO Series. This week's episode is co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Mark Eggleston, CISO, CSC. In this episode: Breaking trust to test it Technical controls over testing The measurement imperative Fire drills, not gotchas Huge thanks to our sponsor, Scanner All your security logs end up in cloud storage like AWS S3. Scanner makes them searchable in seconds and runs real-time detections directly on that data. No pipelines, no re-ingestion. 100x faster than traditional data lakes, 10x cheaper than SIEMs. Loved by analysts. Built for AI agents. Learn more at scanner.dev.
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332
How Much Autonomy Should You Give AI Agents in Your SOC?
All links and images can be found on CISO Series. This week's episode is co-hosted by me, David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our sponsored guest, Cliff Crosland, co-founder and CEO, Scanner.dev. In this episode: Earning autonomy gradually The blast radius question The reality check Today's value, tomorrow's evolution Huge thanks to our sponsor, Scanner All your security logs end up in cloud storage like AWS S3. Scanner makes them searchable in seconds and runs real-time detections directly on that data. No pipelines, no re-ingestion. 100x faster than traditional data lakes, 10x cheaper than SIEMs. Loved by analysts. Built for AI agents. Learn more at scanner.dev.
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331
Cybersecurity's Broken Hiring Process
All links and images can be found on CISO Series. Check out this post by Dr. Chase Cunningham, CSO at Demo-Force, for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Geoff Belknap. Joining us is Brett Conlon, CISO, American Century Investments. In this episode: The experience paradox Who benefits from the narrative Kitchen sink job postings The aggregation problem Huge thanks to our sponsor, Scanner All your security logs end up in cloud storage like AWS S3. Scanner makes them searchable in seconds and runs real-time detections directly on that data. No pipelines, no re-ingestion. 100x faster than traditional data lakes, 10x cheaper than SIEMs. Loved by analysts. Built for AI agents. Learn more at scanner.dev
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330
Simple Security Solutions That Deliver a Big Impact
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode, co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is their sponsored guest, Rob Allen, chief product officer, ThreatLocker. In this episode: Getting permissions right The fundamentals that still fail Know what you have Simple controls, outsized impact Huge thanks to our sponsor, ThreatLocker Want real Zero Trust training? Zero Trust World 2026 delivers hands-on labs and workshops that show CISOs exactly how to implement and maintain Zero Trust in real environments. Join us March 4–6 in Orlando, plus a live CISO Series episode on March 6. Get $200 off with ZTWCISO26 at ztw.com.
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329
When Cybersecurity Marketing Fails to Reach the Buyer
All links and images can be found on CISO Series. Check out this post by Patrick Garrity of VulnCheck for the discussion that is the basis of our conversation on this week's episode, co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining them is Tom Doughty, CISO, Generate:Biomedicines. In this episode: The 3Ms of product clarity Buzzwords work because buyers aren't experts Investor pressures distort messaging Threading the needle Huge thanks to our sponsor, Alteryx Alteryx is a leading AI and data analytics company that powers actionable insights that help organizations drive smarter, faster decisions. Alteryx One helps security, risk, and operations leaders cut hours of manual work to minutes, generate trusted insights at scale, and turn raw data into action faster than ever. Learn more at www.alteryx.com.
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328
How Best to Prepare Your Data for Your Tools
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode, co-hosted by David Spark, the producer of CISO Series, and Geoff Belknap. Joining them is sponsored guest Matt Goodrich, director of information security, Alteryx. In this episode: The integrity challenge Zero trust for AI outputs Guardrails over garbage It looks good... Huge thanks to our sponsor, Alteryx Alteryx is a leading AI and data analytics company that powers actionable insights that help organizations drive smarter, faster decisions. Alteryx One helps security, risk, and operations leaders cut hours of manual work to minutes, generate trusted insights at scale, and turn raw data into action faster than ever. Learn more at www.alteryx.com.
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327
Don't Try to Win with Technical Expertise. Win by Partnering.
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode, co-hosted by me, David Spark, the producer of CISO Series, and Jerich Beason, CISO, WM. Their guest is Pam Lindemoen, CSO and vp of strategy, RH-ISAC. In this episode: From loudest to most trusted Letting go of the win Listening over proving Beyond right and wrong Huge thanks to our sponsor, Alteryx Alteryx is a leading AI and data analytics company that powers actionable insights that help organizations drive smarter, faster decisions. Alteryx One helps security, risk, and operations leaders cut hours of manual work to minutes, generate trusted insights at scale, and turn raw data into action faster than ever. Learn more at www.alteryx.com.
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326
What Makes a Successful CISO?
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Ejona Preci, group CISO, LINDAL Group. In this episode: Consequence, not controls The credibility gap Defining the undefined Expanding the mandate A huge thanks to our sponsor, ThreatLocker ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.
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325
How Should CISOs Talk to the Business
All links and images can be found on CISO Series. Check out this post by Binoy Koonammavu of Secusy AI for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is best-selling cybersecurity author Peter Gregory. His upcoming study guide on AI governance can be pre-ordered here. In this episode: Speaking the language of leadership Beyond translation: the trust factor Making risk tangible When translation isn't enough Huge thanks to our sponsor, ThreatLocker ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.
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324
How Much Cyber Risk Should a CISO Own?
All links and images can be found on CISO Series. Check out this post by Nick Nolen of Redpoint Cyber for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Geoff Belknap. Joining us is Erika Dean, former CSO, Robinhood. In this episode: Delegation requires accountability The reality of daily decision-making The gap between theory and practice Beyond the advisory role Huge thanks to our sponsor, ThreatLocker ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO
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323
How To Tell When a Vendor is Selling AI Snake Oil
All links and images can be found on CISO Series. Check out this post by Christofer Hoff of Truist for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Caleb Sima, builder, WhiteRabbit. Joining them is Crystal Chatam, vp of cybersecurity, Speedcast. In this episode: Understanding the fundamentals The grift of superficial expertise Hands-on experience matters A vulnerability at the leadership level Huge thanks to our sponsor, Stellar Cyber By shining a bright light on the darkest corners of security operations, Stellar Cyber empowers organizations to see incoming attacks, know how to fight them, and act decisively – protecting what matters most. Stellar Cyber's award-winning open security operations platform includes AI-driven SIEM, NDR, ITDR, Open XDR, and Multi-Layer AI™ under one unified platform with a single license. With ⅓ of the global top 250 MSSPs and over 14,000 customers worldwide, Stellar Cyber is one of the most trusted leaders in security operations. Learn more at https://stellarcyber.ai/.
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322
In the Age of Identity, is Network Security Dead?
All links and images can be found on CISO Series. Check out this post by Ross Haleliuk of Venture in Security for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Davi Ottenheimer, vp, trust and digital ethics, Inrupt. In this episode: Network security isn't dying—it's evolving The observability layer that can't be replaced What's old is new again The innovation gap Huge thanks to our sponsor, HackerOne Discover how AI innovators like Adobe, Anthropic, and Snap are using AI to find and fix vulnerabilities across the software development lifecycle. HackerOne, the global leader in offensive security solutions, reveals all in the CISOs' guide to securing the future of AI. Download it now to see how AI can strengthen your security posture. Learn more at https://www.hackerone.com/
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321
How to Manage Configuration Drift
All links and images can be found on CISO Series. Check out this post by Kevin Paige, CISO at ConductorOne, for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Geoff Belknap. Joining us is our sponsored guest, Rob Allen, chief product officer, ThreatLocker. In this episode: When configuration drift becomes operational reality The garden that never stops growing From detection to cultural shift The maturity gap Huge thanks to our sponsor, ThreatLocker ThreatLocker® Defense Against Configurations continuously scans endpoints to uncover misconfigurations, weak firewall rules, and risky settings that weaken defenses. With compliance mapping, daily updates, and actionable remediation in one dashboard, it streamlines hardening, reduces attack surfaces, and strengthens security. Learn more at https://www.threatlocker.com/
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320
Is Least Privilege Dead?
All links and images can be found on CISO Series. Check out this post by Kevin Paige, CISO at ConductorOne, for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is Julie Tsai, CISO-in-Residence, Ballistic Ventures. In this episode: Is least privilege dead? Modern tactics, timeless principle Implementation over ideology Pragmatism over purity Huge thanks to our sponsor, Cyera AI is moving fast - can your security keep up? Join the leaders shaping the future of data and AI security at DataSecAI Conference 2025, hosted by Cyera, Nov 12–13 in Dallas. Register now at https://datasecai2025.com/did.
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319
How Do We Measure Our Defenses Against Social Engineering Attacks?
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Mike Johnson, CISO, Rivian. Joining them is their sponsored guest Bobby Ford, chief strategy and experience officer, Doppel. In this episode: Beyond the click High-risk users demand different metrics Building engagement over punishment Creating a security culture through community Huge thanks to our sponsor, Doppel Doppel is protecting the world's digital integrity. Impersonators adapt fast — but so does Doppel. By pairing AI with expert analysis, we don't just detect deception; we dismantle it. Our platform learns from every attack, expands its reach across digital channels, and disrupts threats before they cause harm. The result? Impersonators lose. Businesses become too costly to attack. And trust stays intact. Learn more at https://www.doppel.com/
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318
Sales Follow Up Sequences: What Works Best in Cyber?
All links and images can be found on CISO Series. Check out this post by Mike Gallardo for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Geoff Belknap. Joining them is Alex Guilday, BISO, Royal Caribbean Group. In this episode: Timing the approach When persistence becomes harassment Playing the long game The necessity argument Huge thanks to our sponsor, Cyera AI is moving fast - can your security keep up? Join the leaders shaping the future of data and AI security at DataSecAI Conference 2025, hosted by Cyera, Nov 12–13 in Dallas. Register now at https://datasecai2025.com/did.
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317
What Soft Skills Do You Need in Cyber?
All links and images can be found on CISO Series. Check out this post by Evgeniy Kharam for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is Ryan Dunn, Leader of Product and Supply Chain Technology, Specialized Bicycle Components. And check out "Architecting Success: The Art of Soft Skills in Technical Sales: Connect to Sell More" by Evgeniy Kharam we referenced in this episode. In this episode: Beyond the technical playbook Influencing without authority Partnering, not just selling The deliberate work of connection Thanks to our sponsor, HackerOne Built on 580,000+ validated vulnerabilities, $81M in payouts this year, and insights from 1,950 enterprise programs, the 2025 Hacker-Powered Security Report shows how leading organizations reduce risk and prove outcomes. Get practical guidance on attacker focus, response patterns, and board-ready metrics. Watch the Q&A, then download the report to operationalize what works for you. https://www.hackerone.com/report/future-of-ai?utm_medium=Paid-Newsletter&utm_source=cisoseries&utm_campaign=Parent-FY25-AIAwarenessCampaign-GL
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316
What is the Visibility That Security Teams Need?
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Bil Harmer, security advisor, Craft Ventures. Joining them is James Bruce, business security services director, WPP. In this episode: Turning visibility into actionable intelligence Pure visibility still provides an essential security foundation Finding strategic value The risk of gaps in identity management Huge thanks to our sponsor, ThreatLocker Human error remains one of the top cybersecurity threats. Just one wrong click can open the door to ransomware or data loss. With ThreatLocker, unauthorized apps, scripts, and devices are blocked before they can ever run. See how ThreatLocker can help you gain more control over your environment. Threatlocker.com/CISO
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315
Data Governance in the Age of AI
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Dan Walsh, CISO, Datavant. Joining them is their sponsored guest, Ash Hunt, vp, strategy, EMEA, Cyera. In this episode: The access creep challenge Bridging intent and execution Looking for integrity Racing against exponential complexity Huge thanks to our sponsor, Cyera AI is moving fast - can your security keep up? Join the leaders shaping the future of data and AI security at DataSecAI Conference 2025, hosted by Cyera, Nov 12–13 in Dallas. Register now at https://www.cyera.com/?utm_source=cisoseries
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314
How Can Security Vendors Better Stand Out?
All links and images can be found on CISO Series. Check out this post by David Mundy of Tuskira for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is Jason Taule, CISO, Luminis Health. In this episode: ROI challenges Venture capital saturation Risk aversion and organizational politics A GTM transformation Huge thanks to our sponsor, Doppel Doppel is the first social engineering defense platform built to dismantle deception at the source. It uses AI and infrastructure correlation to detect, link, and disrupt impersonation campaigns before they spread - protecting brands, executives, and employees while turning every threat into action that strengthens defenses across a shared intelligence network. Learn more at https://www.doppel.com/platform
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313
What New Risks Does AI Introduce?
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Geoff Belknap. Joining us is our sponsored guest, Kara Sprague, CEO, HackerOne. In this episode: Shadow AI as a control problem Rethinking identity for autonomous agents When process meets momentum Beyond blocking: channeling AI usage Huge thanks to our sponsor, HackerOne Built on 580,000+ validated vulnerabilities, $81M in payouts this year, and insights from 1,950 enterprise programs, the 2025 Hacker-Powered Security Report shows how leading organizations reduce risk and prove outcomes. Get practical guidance on attacker focus, response patterns, and board-ready metrics. Watch the Q&A, then download the report to operationalize what works for you. https://www.hackerone.com/report/hacker-powered-security
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312
The Pattern of Early Adoption of Security Tools
All links and images can be found on CISO Series. Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is CISO Series reporter and CISO herself, Hadas Cassorla. In this episode: Security poverty line excludes SMBs Skills gap and channel dynamics slow SMB security adoption The startup disadvantage cycle Technology adoption flows from enterprise complexity to market simplification Huge thanks to our sponsor, ThreatLocker ThreatLocker® is a global leader in Zero Trust endpoint security, offering cybersecurity controls to protect businesses from zero-day attacks and ransomware. ThreatLocker operates with a default deny approach to reduce the attack surface and mitigate potential cyber vulnerabilities. To learn more and start your free trial, visit ThreatLocker.com.
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ABOUT THIS SHOW
Defense in Depth promises clear talk on cybersecurity's most controversial and confusing debates. Once a week we choose one controversial and popular cybersecurity debate and use the InfoSec community's insights to lead our discussion.
HOSTED BY
David Spark, Steve Zalewski, Geoff Belknap
CATEGORIES
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