Simon Willison’s Weblog

XSS Protection by Default in Rails 3.0. Fantastic news—congratulations, Rails core team.

Posted 8th October 2009 at 4:35 pm

Recent articles

The last six months in LLMs, illustrated by pelicans on bicycles - 6th June 2025
Tips on prompting ChatGPT for UK technology secretary Peter Kyle - 3rd June 2025
How often do LLMs snitch? Recreating Theo's SnitchBench with LLM - 31st May 2025

xss 60 rails 72 ruby 72 security 519

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe