Similar to automatic Wi-Fi connectivity, your iPhone searches for nearby available Bluetooth connections. Assailants can use a Bluetooth connection as a potential entry point to hack into your device and steal your personal information. To turn off automatic Bluetooth activity on iOS:
- Go to “Settings.”
- Go to “Bluetooth.”
- Turn Bluetooth off.
A safer way to use Bluetooth devices is to only turn this setting on when you want to use the device you are connecting to. Remember to turn this setting back off when you are done using it.