Undocumented Backdoor Found in Widely Used Bluetooth Chip

An undocumented backdoor has been discovered in the Bluetooth ESP32 chip manufactured by the Chinese company Espressif. This chip, used by more than a billion devices in 2023, could be exploited for attacks. The vulnerability would allow attackers to take control of affected devices, posing a significant risk to user security. The discovery highlights the importance of transparency and security in the design of hardware components.