In September 2015, the Nintendo Wii U forum known as WIIU ISO was hacked and 458k accounts were exposed. Along with email and IP addresses, the vBulletin forum also exposed salted MD5 password hashes.
Record: 458155
In July 2012, Yahoo! had their online publishing service "Voices" compromised via a SQL injection attack. The breach resulted in the disclosure of nearly half a million usernames and passwords stored in plain text. The breach showed that of the compromised accounts, a staggering 59% of people who also had accounts in the Sony breach reused their passwords across both services.
Record: 453427
In mid-2015, the forum for the hosting provider known as OVH suffered a data breach. The vBulletin forum contained 453k accounts including usernames, email and IP addresses and passwords stored as salted MD5 hashes.
Record: 452899
In approximately July 2015, the Sony Playstation hacks and mods forum known as PS3Hax was hacked and more than 447k accounts were exposed. The vBulletin forum included IP addresses and passwords stored as salted hashes using a weak implementation enabling many to be rapidly cracked.
Record: 447410
In approximately mid-2015, the forum for CheapAssGamer.com suffered a data breach. The database from the IP.Board based forum contained 445k accounts including usernames, email and IP addresses and salted MD5 password hashes.
Record: 444767
In June 2020, the online exam service ProctorU suffered a data breach which was subsequently shared extensively across online hacking communities. The breach contained 444k user records including names, email and physical addresses, phones numbers and passwords stored as bcrypt hashes. The data was provided to HIBP by breachbase.pw.
Record: 444453
In December 2019, a large collection of data from Nigerian gambling company Surebet247 was sent to HIBP. Alongside the Surebet247, database backups from gambling sites BetAlfa, BetWay, BongoBongo and TopBet was also included. Further investigation implicated betting platform provider BtoBet as being the common source of the data. Impacted data included user records and extensive information on gambling histories.
Record: 444241
In October 2020, the Asian food delivery app Chowbus suffered a data breach which led to over 800,000 records being emailed to customers. The email contained a link to a CSV file with customer data including physical addresses, names, phone numbers and over 444,000 unique email addresses.
Record: 444224
In December 2014, the electronic sports organisation known as Team SoloMid was hacked and 442k members accounts were leaked. The accounts included email and IP addresses, usernames and salted hashes of passwords.
Record: 442166
In December 2021, logs from the RedLine Stealer malware were left publicly exposed and were then obtained by security researcher Bob Diachenko. The data included 441 thousand unique email addresses, usernames and plain text passwords.
Record: 441657