"A Monitor’s Ultrasonic Sounds Can Reveal What’s on the Screen"

A team of researchers have presented an acoustic side-channel attack that could be used by hackers to gain information pertaining to what is being displayed on a computer monitor. The attack can be performed by analyzing the ultrasonic sounds produced by the targeted monitor via the use of recordings and machine learning algorithms. This article continues to discuss the research behind this acoustic screen attack and protections against this type of attack. 

Wired reports "A Monitor’s Ultrasonic Sounds Can Reveal What’s on the Screen"