Internal Blue

Allows patching of Broadcom and Cypress Bluetooth firmware on off-the-shelf devices, enabling custom features without expensive software-defined radio setups, as detailed in the firmware overview.

Captures all packets with no loss, works with encrypted connections and Classic Bluetooth, and supports packet injection into existing links for thorough security testing.

Used to implement attacks like KNOB and BIAS, and integrates with tools like Frankenstein for fuzzing, demonstrating real-world applicability in vulnerability discovery.

Runs on Android, iOS, macOS, Linux, and user-space implementations, though with specific requirements like rooting or jailbreaking, as noted in the OS-specific setup docs.