News

Ad tracking tech uses high-frequency audio to communicate between devices

A technology watchdog group says that so-called "ultrasonic tracking" techniques make it easier to track your activities across multiple devices—including your TV.

Note: When you purchase something after clicking links in our articles, we may earn a small commission. Read our affiliate link policy for more details.

Nick is a freelance contributor and a former editor for TechHive and PCWorld. He likes puns and the color yellow.

Coupon Codes