Fake virus alerts from Google ads are locking up Mac browsers

Security researchers and everyday users are reporting a wave of malicious online ads that trigger fake 'your Mac is infected' warnings. The ads often appear while browsing normal websites and can lock up a browser window, showing scary pop-ups that urge victims to call a phone number for tech support.

These scams rely on fear and confusion rather than actual malware, tricking people into paying for unnecessary services or handing over personal information. Experts say closing the browser, restarting the computer, or force-quitting the app usually resolves the issue without real damage.

The scam has become common enough that tech support forums are flooded with people, often helping older relatives, asking how to get rid of the fake warnings safely.