Around 15 Excel spreadsheets contain sensitive information for users of the adult website Adult Friend Finder were posted in an underground forum.
The adult site Adult Friend Finder is intended for people looking for casual sex and has a subscriber base of tens of millions of users around the world. The company allegedly did not know the incident.
The company issued a statement today stating that "it has just been informed of a possible security issue and leak of its data" and that it is currently making efforts to understand the full extent of the incident.
The authorities are already involved in the research and MANDIANT experts have been called in by FireEye to assess the damage, and provide remedial solutions and measures to prevent similar events in the future.
The people affected by the leak reach 3.900.000, according to Britain's Channel 4 News. Leaked email addresses, addresses, names, dates of birth, zip codes, sexual preferences, gender, and the IPs of computers of users. All data exists online through the anonymous Tor network.
It seems that the incident happened before 13 in April as reported in a publication by the researcher of Drak Web, Bev Robb, which did not name Adult Friend Finder as the target, but said the information was sent by one hacker, who uses the alias ROR [RG].
At this time the website's database information is still online as confirmed by security researcher Troy Hunt. He said in a tweet that the data contained 3.867.997 unique email addresses post officey, and that some of them belong to accounts that have been deleted.
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