dev.to/tag/security· Oct 8, 2026· by Aditya S

Prompt Heist: a game where you talk your way past Gemma-powered guards (and learn how to defend AI apps)

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What we built Prompt Heist is a browser game about prompt injection. You are the Cipher Phantom, and you talk your way past AI guards to learn their secret code. There are 5 kingdoms with 6 gates each, 30 levels in all. Every guard is a real language model, **Gemma 4, running locally through Ollama. After each level the game explains what trick worked, why the guard was vulnerable, and how a real application would defend against it. We are Team StromBreaker (Shree Santh B, Mudiam Hemanth Reddy,
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#ai#hacktoberfest#llm#security