What should you do to secure and protect the connection to a Bluetooth device?

Turning off device discoverability after connecting helps prevent new unauthorized devices from finding the device, but it does not secure the connection that has already been established if the initial pairing was weak or compromised.

Resetting the Bluetooth device to factory default settings after making a connection would erase the pairing information and disconnect the device, which is counterproductive to maintaining a secure connection.

Turning off the Bluetooth device when not in use is a good general security and power-saving practice, but it does not specifically secure the connection itself when the device is actively in use.

Using unique pairing codes (often referred to as passkeys or PINs) is crucial for securing Bluetooth connections as it authenticates both devices and establishes an encrypted communication channel. This process prevents unauthorized devices from connecting and ensures the confidentiality and integrity of data exchanged between the paired devices.