Ultrasonic tracking and its implications

Ultrasonic tracking is a method of data transmission using near ultrasonic frequencies that are just on the edge of human hearing. Companies embed these ultrasonic tones, also known as beacons, into television shows and advertisements, which are then picked up by mobile app microphones with permission to record. This allows advertisers to gather data about users' viewing habits and locations without their knowledge. The use of ultrasonic tracking raises concerns about privacy and personal data collection, as companies can infer personal information such as sexuality, politics, and potentially even mental health. This form of tracking is just one example of over 75% of Android apps that have some form of tracking, using technologies such as Wi-Fi, Bluetooth, and GPS.