Open Subtitles

In August 2021, the subtitling website Open Subtitles suffered a data breach and subsequent ransom demand. The breach exposed almost 7M subscribers' personal data including email and IP addresses, usernames, the country of the user and passwords stored as unsalted MD5 hashes.

Record: 6.8 million

Aipai.com

In September 2016, data allegedly obtained from the Chinese gaming website known as Aipai.com and containing 6.5M accounts was leaked online. Whilst there is evidence that the data is legitimate, due to the difficulty of emphatically verifying the Chinese breach it has been flagged as "unverified". The data in the breach contains email addresses and MD5 password hashes. Read more about Chinese data breaches in Have I Been Pwned.

Record: 6.5 million

Dueling Network

In March 2017, the Flash game based on the Yu-Gi-Oh trading card game Dueling Network suffered a data breach. The site itself was taken offline in 2016 due to a cease-and-desist order but the forum remained online for another year. The data breach exposed usernames, IP and email addresses and passwords stored as MD5 hashes. The data was provided to HIBP by a source who requested it be attributed to "burger vault".

Record: 6.5 million

126

In approximately 2012, it's alleged that the Chinese email service known as 126 suffered a data breach that impacted 6.4 million subscribers. Whilst there is evidence that the data is legitimate, due to the difficulty of emphatically verifying the Chinese breach it has been flagged as "unverified". The data in the breach contains email addresses and plain text passwords. Read more about Chinese data breaches in Have I Been Pwned.

Record: 6.4 million

EatStreet

In May 2019, the online food ordering service EatStreet suffered a data breach affecting 6.4 million customers. An extensive amount of personal data was obtained including names, phone numbers, addresses, partial credit card data and passwords stored as bcrypt hashes. The data was provided to HIBP by a source who requested it be attributed to "JimScott.Sec@protonmail.com".

Record: 6.4 million

SubaGames

In November 2016, the game developer Suba Games suffered a data breach which led to the exposure of 6.1M unique email addresses. Impacted data also included usernames and passwords, most of which appeared circulating in the breached file in plain text after being cracked from salted MD5 hashes. The data was provided to HIBP by dehashed.com.

Record: 6.1 million

ToonDoo

In August 2019, the comic strip creation website ToonDoo suffered a data breach. The data was subsequently redistributed on a popular hacking forum in November where the personal information of over 6M subscribers was shared. Impacted data included email and IP addresses, usernames, genders, the location of the individual and salted password hashes.

Record: 6.0 million

xat

In November 2015, the online chatroom known as "xat" was hacked and 6 million user accounts were exposed. Used as a chat engine on websites, the leaked data included usernames, email and IP addresses along with hashed passwords.

Record: 6.0 million

Nexus Mods

In December 2015, the game modding site Nexus Mods released a statement notifying users that they had been hacked. They subsequently dated the hack as having occurred in July 2013 although there is evidence to suggest the data was being traded months in advance of that. The breach contained usernames, email addresses and passwords stored as a salted hashes.

Record: 5.9 million

RedDoorz

In September 2020, the hotel management & booking platform RedDoorz suffered a data breach that exposed over 5.8M user accounts. The breached data included names, email addresses, phone numbers, genders, dates of birth and passwords stored as bcrypt hashes. The data was provided to HIBP by a source who requested it be attributed to "white_peacock@riseup.net".

Record: 5.9 million