Tech Apr 8, 2026 10 min Reverse-Engineering the HP Sprocket 200 BLE Protocol to Print from a PC I reverse-engineered the HP Sprocket 200's proprietary BLE protocol (HPLPP) and successfully printed directly from a PC using a Python script. Bluetooth BLE Hardware Python Reverse Engineering
Tech Mar 30, 2026 5 min Cloudflare's bot-management script was reading React's internal state A reverse-engineering report decrypted the obfuscated bytecode running on ChatGPT's login page and uncovered the 55-field fingerprinting system and React Fiber inspection behind Cloudflare Turnstile. Cloudflare Turnstile React Bot Management Fingerprinting Reverse Engineering ChatGPT