Course 28 - Denial of Service and Elevation of Privilege | Episode 1: The Evolution of Denial of Service Attacks

In this lesson, you’ll learn about:Denial of Service (DoS) attacks, and how they target the availability pillar of the CIA triad by exhausting critical system resources.Network bandwidth exhaustion, where attackers flood infrastructure with massive traffic volumes (large or high-frequency packets) to overwhelm connectivity and block legitimate access.CPU and memory exhaustion, including:Fork bombs that rapidly spawn processesExploiting inefficient code (e.g., poorly written algorithms or regex causing exponential resource usage)Storage-based attacks, such as:Zip bombs and XML expansion attacks that inflate small files into massive data, filling disk space and crashing systemsCloud resource and financial exhaustion, where attackers abuse auto-scaling environments to:Trigger excessive resource allocationCause service shutdown due to budget limits or generate extreme operational costsBattery drain attacks, targeting mobile and IoT devices by forcing continuous activity, leading to:Rapid power depletionPotential long-term hardware damagePhysical and accidental availability threats, recognizing that downtime can also result from:Environmental events (e.g., storms, power failures)Human error (e.g., spills, misconfigurations)Hardware damage or infrastructure disruptionThis lesson highlights how modern DoS attacks extend beyond traditional network flooding to include computational, financial, and physical resource exhaustion, reinforcing the need for comprehensive availability protection strategies.You can listen and download our episodes for free on more than 10 different platforms:https://linktr.ee/cybercode_academy