You’re supposed to turn Bluetooth off when you don’t need it – how risky is it really?

By Meena Jha, Associate Professor, College of Information & Communication Technology, School of Engineering and Technology, CQUniversity Australia

You wake up and your smartwatch has already synced with your phone. On the way to work, your phone connects to your car. Later, you put in wireless earbuds. On a crowded bus, dozens of other Bluetooth-enabled devices may be just metres away from yours.

You may not think about Bluetooth at all – it has become an almost invisible part of everyday life.

So what is actually happening when we leave Bluetooth switched on all day? And should we follow official advice that it’s best to turn it off when you’re not…

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