That's true most of the Operating System disable default Bluetooth by default but sometimes the users enable it and don't really care much about it because of the short range it has. Some people enable to it connect Bluetooth speakers and headphones and don't really care much about security when it comes to Bluetooth connection and that's can make things easier for hackers.


The same answer here as well like most people don't really care much about Bluetooth when it comes to security and they may not disable it only to connect some Bluetooth enabled devices.


They don't help that much but if someone has a extender that can cover huge lengths then such extender could in theory go through some of the thick walls as well. This depends on the resources of the hacker that attacks those Bluetooth enable devices but most of the times hackers attack other networks that have good range. In theory it's possible but in reality we haven't heard any such cases so far.