Ads Surreptitiously Using Sound to Communicate Across Devices (Schneier on Security)

2015-11-18 12:59

This is creepy and disturbing: Privacy advocates are warning federal authorities of a new threat that uses inaudible, high-frequency sounds to surreptitiously track a person's online behavior across a range of devices, including phones, TVs, tablets, and computers. The ultrasonic pitches are embedded into TV commercials or are played when a user encounters an ad displayed in a computer browser....

News URL

https://www.schneier.com/blog/archives/2015/11/ads_surreptitio.html

#security