The malware used is impossible to remove from infected devices, according to Kaspersky Lab.
The company said that information including, names, birthdays, addresses and Social Security numbers were taken.
Keeping up its poor showing in AV-Test's assessments, the free offering from Microsoft scored a zero when it came to protection.
Microsoft answered a few questions about its leading-edge Spartan Web browser on Tuesday.
Microsoft will draw a line in the sand of sorts when it releases its new browser for Windows 10, which goes by the code name "Spartan."
Microsoft may be planning to deliver a new Web browser with Windows 10, diverging somewhat from its traditional Internet Explorer product line.
A TLS padding issue could lead to attack. Also: Microsoft enables POODLE protection in IE 11.
Today's release looks to fix 25 flaws in Windows, Internet Explorer and Office.
U.S. companies should be on the lookout for wiper malware that could brick computers.
Mozilla announced a five-year partnership deal today with Yahoo on browser search integration for the U.S. market.
Experts weigh in on how they see security and cultural trends related to the Internet going in the next decade.
Microsoft released a preview this week of a new free service that delivers the latest Internet Explorer browser across Windows, Android and Apple platforms.
Microsoft plans to expand the backward compatibility options enabled by the Enterprise Mode feature in Internet Explorer 11, starting next month.
The Worldwide Web Consortium published HTML5 as a Recommendation this week.
Microsoft gave notice today that it will disable Secure Sockets Layer (SSL) 3.0 support in its Internet Explorer browser and in its Online Services, starting on Dec. 1, 2014.
The new process looks to verify the authenticity of a Google site before users provide their login details.
This month's security offering includes three bulletins rated "critical" and five "important" items.
Internet Explorer will begin blocking outdated Silverlight ActiveX plug-ins, starting on Nov. 11.
Romanian hackers are targeting the Yahoo Games servers.
Microsoft recently noted a problem with its Outlook Web App and its Exchange Admin Center when used with the latest Google Chrome browser.