Researchers say they recently found Google ads delivering a sophisticated tech support scam that freezes the screens of both Windows and Mac devices and displays messages urgently instructing them to phone a bogus call center. The ads were displayed all over the web, including on high traffic maps, weather, real estate, document hosting, and sports sites. Users who called the number were then urged to pay hefty fees, grant remote access to their devices, or divulge personal information. From...
