Passwords were also included in the trove -- the vast majority of them featured unsecured protections or none at all, the report said.
Leaked Source said the alleged breach includes nearly 340 million accounts from flagship site Adult Friend Finder, plus data from other sites owned by Friend Finder Network, including Cams.com, as well as records from Penthouse.com, which was sold in February.
Alarmingly, 99% of all available passwords gathered from the breach, are visible in plaintext.
CSOOnline reveals that information from the breached databases was circulating online since their compromise in October 2016.
The hack and dump performed on FFN has exposed 412,214,295 accounts, according to breach notification site Leaked Source, which disclosed the extent of the privacy disaster on Sunday.Leaked Source said "this data set will not be searchable by the general public on our main page temporarily for the time being."But as infosec blog put it, "The point is, these records exist in multiple places online.They're being sold or shared with anyone who might have an interest in them."That's more users than Twitter and a third of Facebook's global membership.The hack included even 15 million ‘deleted’ accounts, which the site kept for unknown reasons.“While a number of these claims proved to be false extortion attempts, we did identify and fix a vulnerability that was related to the ability to access source code through an injection vulnerability,” ZDNet quoted from an email by CEO Diana Ballou.By way of comparing, this particular breach makes the infamous Ashley Madison breach meagre in comparison.A hack against popular adult dating and entertainment company Friend Finder Networks exposed data related to more than 412 million user accounts, according to a report from breach notification site Leaked Source."Immediately upon learning this information, we took several steps to review the situation and bring in the right external partners to support our investigation," the statement said.The Adult Friend Finder data stretched back 20 years and included information such as usernames, emails, join dates and the date of a user’s last visit, according to Leaked Source.Friend Finder Networks, the parent company behind the likes of Adult Friend Finder, Cams, Penthouse, i Cams and Stripshow has been hacked, with six databases from the company compromised, according to breach notification website Leaked Source.A Local File Inclusion (LFI) exploit was all it took for server breaches that led to a mammoth 412,214,295 user-accounts’ credentials to leak online.