BLEWhisperer: Exploiting BLE Advertisements for Data Exfiltration

Ankit Gangwal, Shubham Singh, Riccardo Spolaor, Abhijeet Srivastava

Abstract: Bluetooth technology has enabled short-range wireless communication for billions of devices. Bluetooth Low-Energy (BLE) variant aims at improving power consumption on battery-constrained devices. BLE-enabled devices broadcast information (e.g., as beacons) to nearby devices via advertisements. Unfortunately, such functionality can become a double-edged sword at the hands of attackers.