Simon Willison’s Weblog

When Ajax Attacks! Web application security fundamentals. Slides and (other people’s) notes from my presentation at @media Ajax on Tuesday.

Posted 17th September 2008 at 11:18 pm

Recent articles

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

ajax 61 atmediaajax 2 atmediaajax08 1 csrf 53 javascript 723 security 560 speaking 117 my-talks 90 xss 60 recovered 213

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