There’s a new side-channel information leak: the visual content displayed on your screen is being leaked by the sound emitted by your screen. Attackers can utilize the built-in mic in the webcam or monitor to reconstruct what you are looking at using neural networks!

In other words, your banking sessions and your logins can be picked up using any nearby listening device. Scary stuff. Check it out at https://www.cs.tau.ac.il/~tromer/synesthesia/