The data contained over 4 million unique email addresses along with IP addresses, usernames and passwords stored as unsalted MD5 hashes.
Breach date: 19 April 2016 Date added to HIBP: 8 July 2016 Compromised accounts: 4,009,640 Compromised data: Device information, Email addresses, IP addresses, Passwords, Usernames In late 2011, a series of data breaches in China affected up to 100 million users, including 7.5 million from the gaming site known as 17173.
Breach date: 1 January 2011 Date added to HIBP: 26 September 2017 Compromised accounts: 9,121,434 Compromised data: Email addresses, Passwords, Usernames In June 2017, the online playlists service known as 8Tracks suffered a data breach which impacted 18 million accounts.
In their disclosure, 8Tracks advised that "the vector for the attack was an employee’s Git Hub account, which was not secured using two-factor authentication".
Breach date: Date added to HIBP: 6 November 2014 Compromised accounts: 180,468 Compromised data: Email addresses, Genders, Geographic locations, IP addresses, Passwords, Usernames, Website activity, Years of birth In December 2017, the virtual keyboard application was found to have left a huge amount of data publicly facing in an unsecured Mongo DB instance.
Discovered by researchers at The Kromtech Security Center, the 577GB data set included extensive personal information including over 20 million unique email addresses, social media profiles and address book contacts.
Whilst some of the data had previously been seen in Have I Been Pwned, 2,844 of the files consisting of more than 80 million unique email addresses had not previously been seen.