Reviewing Mullvad Browser
Firewalls Don't Stop Dragons Podcast
00:00
How to Block Ultrasonic Beacons
Engineer: Why do these microphones need to be listening to high-pitched sounds that humans can't even hear? That would also block this crazy ultrasonic beacon technology that allows some of your devices to spy on other devices. Some TV commercials play ultrasonic frequencies, such as if you're in Facebook and the app is listening for those tones. But when I say, you know, Google, do something or whatever, why doesn't that actually wake up my device?"
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Transcript
