Hi there!

I've been thinking about prompt injection lately, and it's honestly terrifying how vulnerable LLM applications are. The core problem is simple: these models can't reliably tell the difference between your instructions and user data. It's like having a computer that treats everything as executable code.

We've tried the usual defenses—input filtering, fancy prompt engineering, detection systems—but they're all probabilistic. Nothing provides real guarantees.

This reminded me of buffer overflow attacks from decades ago. The solution there was the NX bit: hardware that literally prevents data regions from being executed. Could we do something similar for LLMs?

Turns out, maybe. There's promising research on "Structured Queries" that uses special delimiter tokens to separate trusted instructions from untrusted data, with models trained to respect that boundary. It's not perfect—it's probabilistic, not deterministic—but it significantly raises the bar.

Working on a new article on this topic.

🛡️ Security & Privacy

AI related

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General

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🛸 Tech

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🤖 AI

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🛠️ Tools

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• eBPF Party - Learn eBPF through hands-on exercises. More
• Just the Browser - Minimalist browser project focused on essential web browsing functionality without unnecessary features or bloat. More
• PSC process security check - Open-source tool for analyzing and monitoring Linux process security configurations and potential vulnerabilities. More
• OpenWork AI platform - Collaborative platform enabling teams to work with AI agents for enhanced productivity and workflow automation. More
• Kyutai Pocket TTS - Compact text-to-speech system offering high-quality voice synthesis in resource-constrained environments. More
• Eigent AI framework - AI development framework for building intelligent agents with emphasis on interpretability and safety controls. More
• Linux system programming guide - Comprehensive introduction to Linux system programming covering fundamentals for developers and engineers. More
• Zen-C programming - Minimalist C programming framework promoting clean, maintainable code with reduced complexity and dependencies. More
• MIT GenAI tool for 3D printing - MIT researchers develop generative AI tool that helps design durable 3D-printed personal items for daily use. More

🧸 Misc

• LEGO Education AI literacy - LEGO Education launches hands-on platform bringing AI literacy concepts to K-8 classrooms through interactive learning. More

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Thanks for reading!

Have a great day!
Bogdan