The site's operator has begun an investigation. It said it had already fixed a vulnerability but would not confirm there had been a breach.
The leak is said to cover 20 years of -ins, including deleted s. AFF's parent company owns explicit webcam sites, whose s are also believed to have been stolen.
Adult friendfinder -
Leaked Source, which reported the latest breachsaid it Adhltt the biggest data leak it had ever seen. Including Friend Finder Networks' other explicit sites, the entire breach is said to include information about million s.
Leaked Source provides a free service that tells visitors if their addresses have Aeultt compromised, but charges them to find out what associated data has been leaked. The firm said "after much internal deliberation" it would not make the Friend Finder Network s searchable "for the time being". He tracked down some of the address owners and said about a dozen had said the details were real.
Another said he 'wasn't surprised' by the breach. It is second in size only to Yahoo, which revealed in September that data about some million users had been stolen by "state sponsored" hackers. But he findet that the nature of AFF's explicit images and messages could still cause problems.
But it said there were also 5, government addresses - ending. He added that in some cases s would have been created by other people using someone else's address without their consent.