Ticketfly

In May 2018, the website for the ticket distribution service Ticketfly was defaced by an attacker and was subsequently taken offline. The attacker allegedly requested a ransom to share details of the vulnerability with Ticketfly but did not receive a reply and subsequently posted the breached data online to a publicly accessible location. The data included over 26 million unique email addresses along with names, physical addresses and phone numbers. Whilst there were no passwords in the publicl

Record: 26.2 million

Mathway

In January 2020, the math solving website Mathway suffered a data breach that exposed over 25M records. The data was subsequently sold on a dark web marketplace and included names, Google and Facebook IDs, email addresses and salted password hashes.

Record: 25.7 million

VNG

In April 2018, news broke of a massive data breach impacting the Vietnamese company known as VNG after data was discovered being traded on a popular hacking forum where it was extensively redistributed. The breach dated back to an incident in May of 2015 and included of over 163 million customers. The data in the breach contained a wide range of personal attributes including usernames, birth dates, genders and home addresses along with unsalted MD5 hashes and 25 million unique email addresses.

Record: 24.9 million

MGM Resorts (2022 Update)

In July 2019, MGM Resorts discovered a data breach of one of their cloud services. The breach included 10.6M guest records with 3.1M unique email addresses stemming back to 2017. In May 2022, a superset of the data totalling almost 25M unique email addresses across 142M rows was extensively shared on Telegram. On analysis, it's highly likely the data stems from the same incident with 142M records having been discovered for sale on a dark web marketplace in mid-2020. The exposed data included em

Record: 24.8 million

bigbasket

In October 2020, the Indian grocery platform bigbasket suffered a data breach that exposed over 20 million customer records. The data was originally sold before being leaked publicly in April the following year and included email, IP and physical addresses, names, phones numbers, dates of birth passwords stored as Django(SHA-1) hashes.

Record: 24.5 million

Justdate.com

An alleged breach of the dating website Justdate.com began circulating in approximately September 2016. Comprised of over 24 million records, the data contained various personal attributes such as email addresses, dates of birth and physical locations. However, upon verification with HIBP subscribers, only a fraction of the data was found to be accurate and no account owners recalled using the Justdate.com service. This breach has consequently been flagged as fabricated; it's highly unlikely th

Record: 24.5 million

Zoosk (2020)

In January 2020, the online dating service Zoosk suffered a data breach which was subsequently shared extensively across online hacking communities. The breach contained 24 million unique email addresses alongside extensive personal information including genders, sexualities, dates of birth, physical attributes such as height and weight, religions, ethnicities and political views. The breach also allegedly exposed MD5 password hashes, although the data circulating in hacking circles had this fi

Record: 23.9 million

CafePress

In February 2019, the custom merchandise retailer CafePress suffered a data breach. The exposed data included 23 million unique email addresses with some records also containing names, physical addresses, phone numbers and passwords stored as SHA-1 hashes. The data was provided to HIBP by a source who requested it be attributed to "JimScott.Sec@protonmail.com".

Record: 23.2 million

Wanelo

In approximately December 2018, the digital mall Wanelo suffered a data breach. The data was later placed up for sale on a dark web marketplace along with a collection of other data breaches in April 2019. A total of 23 million unique email addresses were included in the breach alongside passwords stored as either MD5 or bcrypt hashes. After the initial HIBP load, further data containing names, shipping addresses and IP addresses were also provided to HIBP, albeit without direct association to

Record: 23.2 million

Mangatoon

In May 2022, the Hong Kong based Manga service Mangatoon suffered a data breach that exposed 23M subscriber records. The breach exposed names, email addresses, genders, social media account identities, auth tokens from social logins and passwords stored as salted MD5 hashes. Mangatoon did not respond to multiple attempts to make contact regarding the breach.

Record: 23.0 million