Ep 36 | Andrew Bullen - Breaking the Lethal Trifecta (Without Ruining Your Agents) | [un]prompted 2026

Day 2 | Stage 1AI Security Lead from Stripe addresses the prompt injection elephant in the AI Security room—there's no deterministic defense, yet urgency driving AI adoption means many teams feel forced to accept risk or hobble agents. Presents a third path: containment. Shows Stripe's architectural guardrails for protecting agent platform: preventing data exfiltration through controlled egress, UI patterns for human confirmation flows, enforcing guardrails at CI-time using tool annotations.Andrew Bullen is AI Security Lead, Stripe.Watch on YouTube: https://www.youtube.com/watch?v=cNE7P5FkqR8