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Eroticy
June 1, 2015
In mid-2016, it's alleged that the adult website known as Eroticy was hacked. Almost 1.4 million unique accounts were found circulating in late 2016 which contained a raft of personal information ranging from email addresses to phone numbers to plain text passwords. Whilst many HIBP subscribers confirmed their data was legitimate, the actual source of the breach remains inconclusive. A detailed account of the data has been published in the hope of identifying the origin of the breach.
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Convex
February 1, 2023
In February 2023, the Russian telecommunications provider Convex was hacked by "Anonymous" who subsequently released 128GB of data publicly, alleging it revealed illegal government surveillance. The leaked data contained 150k unique email, IP and physical addresses, names and phone numbers.
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BitTorrent
January 1, 2016
In January 2016, the forum for the popular torrent software BitTorrent was hacked. The IP.Board based forum stored passwords as weak SHA1 salted hashes and the breached data also included usernames, email and IP addresses.
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Bin Weevils
September 1, 2014
In September 2014, the online game Bin Weevils suffered a data breach. Whilst originally stating that only usernames and passwords had been exposed, a subsequent story on DataBreaches.net indicated that a more extensive set of personal attributes were impacted (comments there also suggest the data may have come from a later breach). Data matching that pattern was later provided to Have I Been Pwned by @akshayindia6 and included almost 1.3m unique email addresses, genders, ages and plain text passwords.
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Mathway
January 13, 2020
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.
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Underworld Empire
April 25, 2017
In April 2017, the vBulletin forum for the Underworld Empire game suffered a data breach that exposed 429k accounts. The data was then posted to a hacking forum in mid-February 2018 where it was made available to download. The source data contained IP and email addresses, usernames and salted MD5 hashes.
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Paytm
August 30, 2020
In August 2020, the Indian payment provider Paytm was reported as having suffered a data breach and subsequent ransom demand, after which the data was circulated publicly. Further investigation into the data concluded that the breach was fabricated and did not originate from Paytm. The impacted data covered 3.4M unique email addresses along with names, phone numbers, genders, dates of birth, income levels and previous purchases.
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Fantasy Football Hub
October 2, 2021
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[ hack, misconfiguration, technology ]
In October 2021, the fantasy premier league (soccer) website Fantasy Football Hub suffered a data breach that exposed 66 thousand unique email addresses. The data included names, usernames, IP addresses, transactions and passwords stored as WordPress MD5 hashes.
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Anti Public Combo List
December 16, 2016
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[ leak, misconfiguration ]
In December 2016, a huge list of email address and password pairs appeared in a "combo list" referred to as "Anti Public". The list contained 458 million unique email addresses, many with multiple different passwords hacked from various online systems. The list was broadly circulated and used for "credential stuffing", that is attackers employ it in an attempt to identify other online systems where the account owner had reused their password. For detailed background on this incident, read Password reuse, credential stuffing and another billion records in Have I Been Pwned.
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Welhof
August 14, 2024
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[ leak, retail ]
In August 2024, the Dutch appliance store Welhof suffered a data breach. The incident exposed over 100k unique email addresses along with names, physical addresses and the value of purchases made. The data was provided to HIBP by a source who requested it be attributed to "oathnet.ru".
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Sundry Files
January 21, 2022
In January 2022, the now defunct file upload service Sundry Files suffered a data breach that exposed 274k unique email addresses. The data also included usernames, IP addresses and passwords stored as salted SHA-256 hashes.
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Scholastic
January 8, 2025
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[ hack, education ]
In January 2025, a data breach of the publishing company Scholastic surfaced. The breach contained 4.2M unique email addresses with many of the records also including name, phone number and physical address.
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Roblox Developer Conference (2023)
December 18, 2020
In July 2023, a list of alleged attendees from the 2017-2020 Roblox Developers Conferences was circulated on a forum. The data contained 4k unique email addresses along with names, usernames, dates of birth, phone numbers, physical and IP addresses and T-shirt sizes
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NetProspex
September 1, 2016
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[ leak, misconfiguration, technology ]
In 2016, a list of over 33 million individuals in corporate America sourced from Dun & Bradstreet's NetProspex service was leaked online. D&B believe the targeted marketing data was lost by a customer who purchased it from them. It contained extensive personal and corporate information including names, email addresses, job titles and general information about the employer.
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FlipaClip
November 18, 2024
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[ leak, misconfiguration, technology ]
In November 2024, the animation app FlipaClip suffered a data breach that exposed almost 900k records due to an exposed Firebase server. The impacted data included name, email address, country and date of birth. FlipaClip advised the issue has since been rectified.
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Black Hat World
June 23, 2014
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[ hack, sqlinjection, technology ]
In June 2014, the search engine optimisation forum Black Hat World had three quarters of a million accounts breached from their system. The breach included various personally identifiable attributes which were publicly released in a MySQL database script.
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Zacks
May 10, 2020
In December 2022, the investment research company Zacks announced a data breach. The following month, reports emerged of the incident impacting 820k customers. However, in June 2023, a corpus of data with almost 9M Zacks customers appeared before being broadly circulated on a popular hacking forum. The most recent data was dated May 2020 and included names, usernames, email and physical addresses, phone numbers and passwords stored as unsalted SHA-256 hashes. On disclosure of the larger breach, Zacks advised that in addition to their original report "the unauthorised third parties also gained access to encrypted [sic] passwords of zacks.com customers, but only in the encrypted [sic] format".
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vBulletin
November 3, 2015
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[ hack, technology ]
In November 2015, the forum software maker vBulletin suffered a serious data breach. The attack lead to the release of both forum user and customer accounts totalling almost 519k records. The breach included email addresses, birth dates, security questions and answers for customers and salted hashes of passwords for both sources.
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National Public Data
April 9, 2024
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[ leak, technology ]
In April 2024, a large trove of data made headlines as having exposed "3 billion people" due to a breach of the National Public Data background check service. The initial corpus of data released in the breach contained billions of rows of personal information, including US social security numbers. Further partial data sets were later released including extensive personal information and 134M unique email addresses, although the origin and accuracy of the data remains in question. This breach has been flagged as "unverified" and a full description of the incident is in the link above.
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Multiplayer.it
September 1, 2018
In April 2024, over half a million records taken from the Italian gaming website Multiplayer.it were posted to a popular hacking forum. The impacted data included email addresses, usernames and salted MD5 password hashes. Multiplayer.it subsequently confirmed the breach dated back 6 years to September 2018 and was merely re-posted in 2024.
