From Business Insider:
6.5 million encrypted LinkedIn passwords have leaked.
The passwords were shared via a Russian hacker site, and security researcher Per Thorsheim confirms that the leak is legit.
LinkedIn hasn’t offered any statement on the incident at the time of this writing, but we would strongly suggest changing your password.
Click here to learn how to change your LinkedIn password >
UPDATE: LinkedIn reports via Twitter that its “team is currently looking into reports of stolen passwords. Stay tuned for more.”
UPDATE 2: LinkedIn tweets again — “Our team continues to investigate, but at this time, we’re still unable to confirm that any security breach has occurred. Stay tuned here.”
UPDATE 3: Robert David Graham tweets that he can confirm this hack is real and wrote this blog post explaining how he found his password among the leaked data.