Google bans hundreds of Android apps that use ultrasonic sounds to secretly SPY on users
Google has banned an army of Android apps that use ultrasonic sounds to spy on users without their knowledge.
The moves comes after researchers revealed that hundreds of Android applications are embedded with ultrasonic cross-device tracking technology that pick up inaudible 'beacons' emitted from advertisements.
This allows marketers to create personalised ads based on your interests, as they are able to determine your location and what activities you may be engaged in.
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