Simon Willison’s Weblog

GreaseMonkeyUserScripts. There are quite a few already.

Posted 20th January 2005 at 12:16 am

Recent articles

The lethal trifecta for AI agents: private data, untrusted content, and external communication - 16th June 2025
An Introduction to Google’s Approach to AI Agent Security - 15th June 2025
Design Patterns for Securing LLM Agents against Prompt Injections - 13th June 2025

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