Prompt Injection Defense Playbook
Complete 16-page guide to defending against the #1 vulnerability in LLM applications.
⚠️ Why This Matters:
Prompt injection attacks can bypass your safety controls, extract sensitive data, and manipulate AI behavior. Unlike traditional security vulnerabilities, they exploit the fundamental nature of how LLMs work.
Defend Against:
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What's Inside the Playbook
10 attack technique taxonomies
50+ real-world test cases
Detection patterns & regex examples
Multi-layer defense strategy
RAG-specific protections
Incident response playbook
Implementation code examples
Security checklist
Real Attack Examples You'll Learn to Defend
Instruction Override
Risk: Bypasses safety controls
Defense: Input filtering + prompt hardening
Jailbreak (DAN)
Risk: Creates unrestricted AI persona
Defense: Identity reinforcement + persona blocking
Indirect Injection (RAG)
Risk: Hidden instructions in retrieved content
Defense: Document sanitization + source validation
Prompt Extraction
Risk: Reveals system instructions & secrets
Defense: Meta-instructions + obfuscation
5-Layer Defense Strategy
Layer 1: Input Validation
Filter suspicious keywords, sanitize delimiters, enforce format limits
Layer 2: Prompt Engineering
Hardened system prompts with clear boundaries and meta-instructions
Layer 3: Output Filtering
Scan responses for policy violations, anomaly detection, human-in-loop
Layer 4: Architectural Controls
Least privilege, tool restrictions, data isolation, audit logging
Layer 5: Continuous Testing
Regular red teaming, automated adversarial tests, bug bounties
Trusted by Security Teams Worldwide
"This playbook caught 3 critical vulnerabilities in our AI chatbot that we completely missed. We implemented the 5-layer defense and haven't had a successful attack since."
— Alex Rivera
Head of Security, FinTech Startup
Common Questions
Why is this free?
We believe basic AI security knowledge should be accessible to everyone. By sharing this playbook, we help raise the security baseline for the entire industry.
Is this technical?
The playbook is designed for both technical and non-technical audiences. It includes code examples but also high-level strategy and checklists.
Can I share this with my team?
Yes! Share it with as many people as you like. We encourage it.
Do you offer implementation help?
Yes. If you need hands-on help implementing these defenses, we offer red teaming and security hardening services. Contact us to learn more.
Protect Your AI From Prompt Injection
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