aaron blog

Chillnet CTF Challenge

A CTF challenge called Chillnet.

What link previews leak

Research into some popular messaging apps and what data they send when they fetch a link preview.

Detecting and blocking OpenAI crawlers

OpenAI collects data on the internet from web crawlers in order to train their machine learning models. This post describes how to detect traffic from these crawlers and how to block them, with GreyNoise and Cloudflare.