Building a Proof of Work Captcha with WASM based fingerprinting 2025-09-19 Exploring Argon2 Proof of Work and WASM to build a Captcha.
Reversing the Spur.us Monocle Captcha 2025-08-26 An in-depth analysis of the Spur.us Monocle captcha system, exploring its architecture, browser fingerprinting techniques, and the IPv6 connectivity patterns that make it vulnerable to automation.