“Sleeper” browser extensions woke up as spyware on 4 million devices

Researchers have unraveled a malware campaign that really did play the long game. After seven years of behaving normally, a set of browser extensions installed on roughly 4.3 million Chrome and Edge users’ devices suddenly went rogue. Now they can track what you browse and run malicious code insi...

ShadyPanda Turns Popular Browser Extensions with 4.3 Million Installs Into Spyware

A threat actor known as ShadyPanda has been linked to a seven-year-long browser extension campaign that has amassed over 4.3 million installations over time. Five of these extensions started off as legitimate programs before malicious changes were introduced in mid-2024, according to a report fro...