Open-source stealth USB hides an encrypted partition behind an 8GB decoy drive — 'Phantom Drive' appears as a regular USB stick until you create a text file to unlock the hidden data

This USB looks like a standard 8GB drive, but it unlocks a hidden partition when you create a text file with the password inside. The password is never actually written to storage; it's instead intercepted by the custom firmware and copied into the microcontroller's SRAM during hashing.