Simon Willison’s Weblog

Company culture is the shared way everyone acts when you aren’t around to see it

— Adam Kalsey

Posted 20th May 2020 at 3:30 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