Last year we saw the data dump of millions of Ashley Madison accounts and now there's a massive data breach at Adultfriendfinder. A hack of Friend Finder Network in October reportedly yielded data about the company's 412 million users, which includes details about 339.7 million users of Adultfriendfinder plus data of millions of users of adult cam websites and the Penthouse.com website.
Among other things, hackers managed to grab user names, e-mail addresses and passwords, the majority were SHA1 hashed but over 100 million passwords were stored as plaintext. SHA1 is not deemed secure and the hackers say they have 99.0 percent of all available passwords visible in plaintext. The longest on the list is 32 characters long!
Friend Finder Network Inc is a company that operates a wide range of 18+ services and was hacked in October of 2016 for over 400 million accounts representing 20 years of customer data which makes it by far the largest breach we have ever seen -- MySpace gets 2nd place at 360 million. This event also marks the second time Friend Finder has been breached in two years, the first being around May of 2015.
Full details about the hack and some interesting findings can be read at LeakedSource, they have lists of the most commonly used passwords, the most commonly used email hosts, and a list of some of the longest passwords they managed to crack.
Fortunately, LeakedSource decided to keep this data set private.