It is proper Netiquette to turn bluetooth off when not in use. Don't leave connections open unless your using them.
Bluetooth is a discoverable connection. Computers can seek out open connections. Discoverable is a setting for the technology on devices. When the technology is on it presents an open connection with a device to others with similar capabilities. Sensitive data including biometrics is transferred through these connections. Pairing is a security measure used to prevent sharing data without permission.
The discoverable setting is generally turned off. It is turned on only to pair, connect, devices. Bluetooth can be turned off completely when not in use. Hackers can exploit any open connection.
Turn off bluetooth when not in use because open connections may be hacked.
Published on May 15, 2016 | 0:26 Seconds | Science and Technology
An overview of Internet Safety Netiquette. Key terms and graphics that correspond to explanations
Published on October 28, 2015 | 2:21 Minutes | Science and Technology
Mobile Netiquette Rules. Five social conventions for protecting mobile devices