Hackers are claiming to have the private messages from 81,000 Facebook users, with a claim of having details of 120 million users accounts.
Facebook say it has not been compromised, however, it suggest it could have been malicious browser extensions causing the problem.
"We have contacted browser-makers to ensure that known malicious extensions are no longer available to download in their stores," said Facebook executive Guy Rosen.
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bbc.co.uk...]
OK, so, they could have the details, but not from Facebook itself.