978 indexed
BREACHDisclosed breaches
978 disclosed breaches from Have I Been Pwned. Filter by year, or for year-on-year volume see /explore/breaches. Authored by Adam Lundqvist.
Showing 851–900 of 978 · page 18 of 20
| ID | Title | Summary |
|---|---|---|
| Tracki | Tracki 373K records2024-08-15 | In August 2024, a slew of security vulnerabilities were identified with a conglomerate of online services which included the GPS tracking service Tracki . Mult… |
| Traderie | Traderie 365K records2022-09-24 | In September 2022, the in-game trading marketplace Traderie suffered a data breach that exposed almost 400k records (this preceded a subsequent breach the foll… |
| Travel Oklahoma | Travel Oklahoma 637K records2020-12-17 | In December 2020, the Oklahoma state Tourism and Recreation Department suffered a data breach . The incident exposed 637k email addresses across a variety of t… |
| Travelio | Travelio 471K records2021-11-23 | In November 2021, the Indonesian real estate website Travelio suffered a data breach that exposed over 470k customer accounts . The data included email address… |
| Trello | Trello 15.1M records2024-01-16 | In January 2024, data was scraped from Trello and posted for sale on a popular hacking forum . Containing over 15M email addresses, names and usernames, the da… |
| Trillian | Trillian 3.8M records2015-12-27 | In December 2015, the instant messaging application Trillian suffered a data breach . The breach became known in July 2016 and exposed various personal data at… |
| Troy Hunt's Mailchimp List | Troy Hunt's Mailchimp List 17K records2025-03-25 | In March 2025, a phishing attack successfully gained access to Troy Hunt's Mailchimp account and automatically exported a list of people who had subscribed to … |
| TruckersMP | TruckersMP 84K records2016-02-25 | In February 2016, the online trucking simulator mod TruckersMP suffered a data breach which exposed 84k user accounts. In a first for "Have I Been Pwned", the … |
| TrueFire | TrueFire 600K records2020-02-21 | In February 2020, the guitar tuition website TrueFire suffered a data breach which impacted 600k members. The breach exposed extensive personal information inc… |
| Truth Finder | Truth Finder 8.2M records2019-04-12 | In 2019, the public records search service TruthFinder suffered a data breach that later came to light in early 2023 . The data included over 8M unique custome… |
| tumblr | tumblr 65.5M records2013-02-28 | In early 2013, tumblr suffered a data breach which resulted in the exposure of over 65 million accounts. The data was later put up for sale on a dark market we… |
| Tuned Global | Tuned Global 986K records2016-03-16 | In January 2021, data from a number of breached services including Tuned Global were released to a public hacking forum . The breach appears to date back to 20… |
| Tunngle | Tunngle 8.2M records2016-07-01 | In 2016, the now defunct global LAN gaming network Tunngle suffered a data breach that exposed 8.2M unique email addresses. The compromised data also included … |
| Twitter 6.7M records2022-01-01 | In January 2022, a vulnerability in Twitter's platform allowed an attacker to build a database of the email addresses and phone numbers of millions of users of… | |
| Twitter (200M) | Twitter (200M) 211.5M records2021-01-01 | In early 2023, over 200M records scraped from Twitter appeared on a popular hacking forum . The data was obtained sometime in 2021 by abusing an API that enabl… |
| Ualabee | Ualabee 472K records2025-05-06 | In May 2025, the South American mobility services platform Ualabee had hundreds of thousands of records scraped from an interface on their platform . The data … |
| Ubook | Ubook 700K records2024-07-28 | In July 2024, 700k unique email addresses from the audiobook platform Ubook were posted to a popular hacking forum . Allegedly scraped from the service, the da… |
| Udemy | Udemy 1.4M records2026-04-24 | In April 2026, online training company Udemy was the victim of a “pay or leak” extortion attempt perpetrated by the ShinyHunters group. The data was subsequent… |
| Uiggy | Uiggy 2.7M records2016-06-01 | In June 2016, the Facebook application known as Uiggy was hacked and 4.3M accounts were exposed, 2.7M of which had email addresses against them. The leaked acc… |
| Ulmon | Ulmon 778K records2020-01-26 | In January 2020, the travel app creator Ulmon suffered a data breach . The service had almost 1.3M records with 777k unique email addresses, names, passwords s… |
| UN Internet Governance Forum | UN Internet Governance Forum 3K records2014-02-20 | In February 2014, the Internet Governance Forum (formed by the United Nations for policy dialogue on issues of internet governance) was attacked by hacker coll… |
| Under Armour | Under Armour 72.7M records2025-11-17 | In November 2025, the Everest ransomware group claimed Under Armour as a victim and attempted to extort a ransom , alleging they had obtained access to 343GB o… |
| Underworld Empire | Underworld Empire 429K records2017-04-25 | 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 foru… |
| Unico Campania | Unico Campania 166K records2020-08-19 | In August 2020, the Neapolitan public transport website Unico Campania was hacked and the data extensively circulated . The breach contained 166k user records … |
| Unigame | Unigame 844K records2019-12-14 | In December 2019, the now defunct gaming website Unigame (maker of Hunter Online) suffered a data breach that was later redistributed as part of a larger corpu… |
| Universarium | Universarium 565K records2019-11-01 | In approximately November 2019, the Russian "Remote preparatory faculty for IT specialties" Universarium suffered a data breach. The incident exposed 565k emai… |
| University of California | University of California 547K records2020-12-24 | In December 2020, the University of California suffered a data breach due to vulnerability in in a third-party provider, Accellion . The breach exposed extensi… |
| University of Pennsylvania | University of Pennsylvania 624K records2025-10-30 | In October 2025, the University of Pennsylvania was the victim of a data breach followed by a ransom demand , largely affecting its donor database. After the i… |
| Unreal Engine | Unreal Engine 530K records2016-08-11 | In August 2016, the Unreal Engine Forum suffered a data breach , allegedly due to a SQL injection vulnerability in vBulletin. The attack resulted in the exposu… |
| Unverified Data Source | Unverified Data Source 11.5M records2021-01-26 | In January 2021, over 11M unique email addresses were discovered by Night Lion Security alongside an extensive amount of personal information including names, … |
| Upstox | Upstox 111K records2021-04-08 | In April 2021, Indian brokerage firm Upstox suffered a data breach . The incident exposed extensive personal information on over 100k customers including names… |
| Utah Gun Exchange | Utah Gun Exchange 235K records2020-07-17 | In July 2020, the Utah Gun Exchange website suffered a data breach which included several other associated websites. In total, 235k unique email addresses were… |
| Utair | Utair 401K records2019-03-21 | In August 2020, news broke of a data breach of Russian airline Utair that dated back to the previous year . The breach contained over 400k unique email address… |
| uTorrent | uTorrent 395K records2016-01-14 | In early 2016, the forum for the uTorrent BitTorrent client suffered a data breach which came to light later in the year. The database from the IP.Board based … |
| uuu9 | uuu9 7.5M records2016-09-06 | In September 2016, data was allegedly obtained from the Chinese website known as uuu9.com and contained 7.5M accounts. Whilst there is evidence that the data i… |
| V-Tight Gel | V-Tight Gel 2.0M records2016-02-13 | In approximately February 2016, data surfaced which was allegedly obtained from V-Tight Gel (vaginal tightening gel) . Whilst the data set was titled V-Tight, … |
| Vakinha | Vakinha 4.8M records2020-06-22 | In June 2020, the Brazilian fund raising service Vakinha suffered a data breach which impacted almost 4.8 million members. The exposed data included email addr… |
| Vastaamo | Vastaamo 30K records2019-03-31 | In October 2020, the Finnish psychotherapy service Vastaamo was the subject of a ransomware attack targeting first the company itself, followed by their patien… |
| vBulletin | vBulletin 519K records2015-11-03 | 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 t… |
| Vedantu | Vedantu 687K records2019-07-08 | In mid-2019, the Indian interactive online tutoring platform Vedantu suffered a data breach which exposed the personal data of 687k users. The JSON formatted d… |
| Verifications.io | Verifications.io 763.1M records2019-02-25 | In February 2019, the email address validation service verifications.io suffered a data breach . Discovered by Bob Diachenko and Vinny Troia , the breach was d… |
| Verified | Verified 17K records2014-01-10 | In January 2014, one of the largest communities of Eastern Europe cybercriminals known as "Verified" was hacked . The breach exposed nearly 17k users of the vB… |
| Vermillion | Vermillion 8K records2014-08-30 | In August 2014, the Roblox hacking forum Vermillion suffered a data breach that exposed over 8k subscriber records. The breach of the MyBB forum exposed email … |
| Vianet | Vianet 94K records2020-04-08 | In April 2020, the Nepalese internet service provider Vianet suffered a data breach . The attack on the ISP led to the exposure of 177k customer records includ… |
| Victory Phones | Victory Phones 166K records2017-01-01 | In January 2017, the automated telephony services company Victory Phones left a Mongo DB database publicly facing without a password . Subsequently, 213GB of d… |
| Vietnam Airlines | Vietnam Airlines 7.3M records2025-06-20 | In October 2025, data stolen from the Salesforce instances of multiple companies by a hacking group calling itself "Scattered LAPSUS$ Hunters" was publicly rel… |
| ViewFines | ViewFines 778K records2018-05-07 | In May 2018, the South African website for viewing traffic fines online known as ViewFines suffered a data breach . Over 934k records containing 778k unique em… |
| Vimeo | Vimeo 119K records2026-04-28 | In April 2026, the ShinyHunters extortion group listed Vimeo on their extortion portal as part of their "pay or leak" campaign . They subsequently published hu… |
| VimeWorld | VimeWorld 3.1M records2018-10-01 | In October 2018, the Russian Minecraft service VimeWorld suffered a data breach that was later redistributed as part of a larger corpus of data . The data incl… |
| Viva Air | Viva Air 932K records2022-03-14 | In March 2022, the now defunct Colombian airline Viva Air suffered a data breach and subsequent ransomware attack . Among a trove of other ransomed data, the i… |