Inaudible sounds are being used to transmit data from our devices. While not new technology, these ultrasonic beacons may be in breach of laws regarding surveillance devices.
It's not just fitness trackers – mobile phones can reveal users' whereabouts too, even with location tracking turned off.
Should police be able to use cellphone records to track suspects – and law-abiding citizens?
You can learn a lot about the movement of people and animals if you tap into the tracking data from many of today's mobile phones.
Mine communications are complex, slow and unreliable. The solution to keeping miners safe, and rescuing them when disaster strikes, might just be in their hands already.
The navigation tactics of certain Australian ants could point the way to helping driverless cars find their way around.
New York City is developing a 'free' public Wi-Fi network to be deployed throughout the city, but the poorly appreciated price is our privacy.
There's a global race on to harness mapping technology, delivering companies the data they need to gain a competitive advantage.