Your uncle’s frozen Mac says it’s infected after viewing a Google ad. Now what?

These malicious Google ads open a page that abuses the browser's full-screen and keyboard-lock features to mimic a frozen, infected computer, then urges victims to call a fake support line. Netskope found the code stays encrypted until it runs and waits for a mouse movement, which helps it dodge scanners. Nothing is really locked: holding Escape for a few seconds usually exits full screen so you can close the tab.

Summary edited by the HowTechMoves team, based on reporting by Ars Technica.