Talking Behind Your Back: Attacks and Countermeasures of Ultrasonic Cross-Device Tracking
▶Talking Behind Your Back: Attacks and Countermeasures of Ultrasonic Cross-Device Tracking — a 2016 Black Hat Europe 2016 security conference talk on privacy (1:02:58 min). Watch the full video, indexed free on the Breach Arc Archive.
▶ Watch video on YouTube