2million Facebook, Google, Twitter, Yahoo Passwords Stolen in Massive Hack

Hackers have stolen usernames and passwords for nearly two million accounts at Facebook, Google, Twitter, Yahoo and others, according to a report released by CNN Money.

The massive data breach was a result of keylogging software maliciously installed on an untold number of computers around the world, researchers at cybersecurity firm Trustwave said. The virus was capturing log-in credentials for key websites over the past month and sending those usernames and passwords to a server controlled by the hackers.

Trustwave notified these companies of the breach. They posted their findings publicly on Tuesday.
"We don't have evidence they logged into these accounts, but they probably did," said John Miller, a security research manager at Trustwave.

Want to know whether your computer is infected? Just searching programs and files won't be enough, because the virus running in the background is hidden, Miller said. Your best bet is to update your antivirus software and download the latest patches for Internet browsers, Adobe and Java.

And lastly, of course make sure you change all your passwords