Prompt injection isn't some new exotic hack. It’s what happens when you throw your admin console and your users into the same text box and pray the intern doesn’t find the keys to production. Vendors keep chanting about “guardrails” like it’s a Harry Potter spell, but let’s be real—if your entire security model is “please don’t say ignore previous instructions,” you’re not doing security, you’re doing improv. On this episode of Pop Goes the Stack, we're digging into what it actually takes to keep agentic #AI from dumpster-diving its own system prompts: deterministic policy engines, mediated tool use, and maybe—just maybe—admitting that your LLM is not a #CISO. Because at the end of the day, you can’t trust a probabilistic parrot to enforce your compliance framework. That’s how you end up with a fax machine defending against a DDoS—again. The core premise here is that prompt injection is not actually injection, it's system prompt manipulation—but it's not a bug, it's by design. There's a GitHub repo full of system prompts extracted by folks and a number of articles on "exfiltration" of system prompts. Join #F5's Lori MacVittie, Joel Moses, and Jason Williams as they explain why it's so easy, why it's hard to prevent, and possible mechanisms for constraining AI to minimize damage. Cause you can't stop it. At least not yet. Chapters: 00:00 Welcome to Pop Goes the Stack 01:53 What Exactly Are System Prompts? 03:01 The Evolution of System Prompts 03:58 Why Prompt Injection Tops OWASP GenAI Threats 05:45 Tools and Function Calling: A Double-Edged Sword 07:05 Prompt Injection vs Jailbreaking 09:23 Exfiltration Risks: Insights from Leaked Prompts 12:03 Risks with AI Agents and Agentic Architectures 14:41 A Future Beyond System Prompts for Guardrails 16:42 System Prompt Growth: Operational Cost Implications 18:20 Key Takeaways: Security and Architecture Evolutions Learn how you can stay ahead of the curve and keep your stack whole with additional insights on app security, multicloud, AI, and emerging tech: https://go.f5.net/944omoyr More about F5: https://www.f5.com/ Read our blog: https://www.f5.com/company/blog Follow us on LinkedIn: https://www.linkedin.com/company/F5

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