Reverse engineering a Bluetooth printer server reveals multiple security flaws, including exposed debug interfaces and insecure GATT services, enabling unauthenticated remote code execution with root privileges via Bluetooth or network access.
Blinkenlights 2.0: Reverse Engineering a Smartwatch via Screen Signals
Reverse engineering a cheap smartwatch and reviving the classic “blinkenlights” attack to extract firmware through screen update patterns, revealing weaknesses in OTA update mechanisms, BLE communication, and embedded device security design.