Bluesnarfing occurs when a hacker unknowingly pairs with your Bluetooth device and steals or compromises your personal data. To keep hackers at bay, keep your Bluetooth turned off whenever you are not using it.
Bluetooth encryption levels 2-4 are intended to keep eavesdroppers at bay, but their imperfect coding and outdated protocol can occasionally leave unpatched security holes, exposing your data. By misspelling the name of a device that your device trusts, eavesdroppers trick you into pairing with their devices. They can, for example, name their device the same name as your office printer, so that when you search for the printer using your phone Bluetooth, you find and connect with the hackers’ Bluetooth first. They gain access to your entire device after pairing. Always make sure your Bluetooth device is running the most up-to-date software and protocols. Also, even if you trust the device, double-check the name – don’t ignore any misspellings.
3. 𝐃𝐞𝐧𝐢𝐚𝐥 𝐨𝐟 𝐬𝐞𝐫𝐯𝐢𝐜𝐞
A hacker can cause your devices to crash and deny you services such as messaging and phone calls. They can even prevent your phone from receiving emails, drain its battery, or block commands. It is critical that you turn off your Bluetooth when not in use.
4. 𝐕𝐢𝐫𝐮𝐬𝐞𝐬 𝐚𝐧𝐝 𝐰𝐨𝐫𝐦𝐬
This occurs when you download malware from fraudulent websites and apps. Many smartphone users have fallen into the trap of mistyping web URLs or downloading unverified apps, only to have the app compromise their Bluetooth security and leave them vulnerable to hackers. You can avoid this threat by only downloading apps from reputable websites and reading all terms of service before installing an app on your phone.
5. 𝐁𝐥𝐮𝐞𝐭𝐨𝐨𝐭𝐡 𝐡𝐞𝐚𝐝𝐬𝐞𝐭𝐬 𝐯𝐮𝐥𝐧𝐞𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐲
Hackers can use Bluetooth headsets to listen in on conversations around you. This includes calls, face-to-face conversations while the headset is still on, and even third-party conversations. It is critical that you disconnect your Bluetooth headset when not in use.