When browsing yesterday, I got a web page (screen shot attached) that said "You were being hacked. We have stopped it for now. Contact Technical Support Now. System Health is Critical."
I assume this is a scam, but I am concerned about how someone could have actually gotten that onto my computer.
Note that the web address displayed is support.microsoft.com and the phone number actually appears as the phone number of a divorce attorney in Wichita, KS (the number is listed on their website, unless that is also a spoof).