Windows PC Defender is a new rogue from the same family as Ultimate System Guard and Windows Guard Pro. Windows PC Defender is promoted through the use of pop-ups that appear when browsing the web.

Scammers are using fake Windows Defender pop-ups with real looking phone numbers to trick users. These fraudulent warnings are not from Microsoft and aim to gain remote access to your computer. A ...

The Windows Defender Alert Support Scam Popup is a web browser advertisement shown by scammy remote tech support companies that try to scare visitors into thinking that Windows Defender has detected ...

Q: Are Windows Defender warnings that pop up with a phone number legit? A: Microsoft’s built-in security tool has improved over the years, and it still blocks plenty of everyday threats. But the ...

Update, March 31, 2025: This story, originally published March 29, has been updated with an explanation of LOLBINS as well as further technical information regarding the Windows Defender Application ...