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 501–550 of 978 · page 11 of 20
| ID | Title | Summary |
|---|---|---|
| Lookbook | Lookbook 1.1M records2012-08-24 | In August 2012, the fashion site Lookbook suffered a data breach . The data later appeared listed for sale in June 2016 and included 1.1 million usernames, ema… |
| Lookiero | Lookiero 5.0M records2024-03-27 | In August 2024, a data breach from the online styling service Lookiero was posted to a popular hacking forum . Dating back to March 2024, the data included 5M … |
| Lord of the Rings Online | Lord of the Rings Online 1.1M records2013-08-01 | In August 2013, the interactive video game Lord of the Rings Online suffered a data breach that exposed over 1.1M players' accounts. The data was being activel… |
| Lounge Board | Lounge Board 45K records2013-08-01 | At some point in 2013, 45k accounts were breached from the Lounge Board "General Discussion Forum" and then dumped publicly . Lounge Board was a MyBB forum lau… |
| Lovora | Lovora 496K records2026-02-25 | In February 2026, the couples and relationship app Lovora allegedly suffered a data breach that exposed 496k unique email addresses. The data also included use… |
| LuLu | LuLu 2.8M records2024-07-06 | In July 2024, the Emirati-based LuLu retail store suffered a data breach . The impacted data included 190k email addresses and associated phone numbers which w… |
| Lumin PDF | Lumin PDF 15.5M records2019-04-01 | In April 2019, the PDF management service Lumin PDF suffered a data breach . The breach wasn't publicly disclosed until September when 15.5M records of user da… |
| Luxottica | Luxottica 77.1M records2021-03-16 | In March 2021, the world's largest eyewear company Luxoticca suffered a data breach via one of their partners that exposed the personal information of more tha… |
| Lyrics Mania | Lyrics Mania 109K records2017-12-21 | In December 2017, the song lyrics website known as Lyrics Mania suffered a data breach. The data in the breach included 109k usernames, email addresses and pla… |
| Mac Forums | Mac Forums 327K records2016-07-03 | In July 2016, the self-proclaimed "Ultimate Source For Your Mac" website Mac Forums suffered a data breach. The vBulletin-based system exposed over 326k userna… |
| Mac-Torrents | Mac-Torrents 94K records2015-10-31 | In October 2015, the torrent site Mac-Torrents was hacked and almost 94k usernames, email addresses and passwords were leaked. The passwords were hashed with M… |
| MacGeneration | MacGeneration 101K records2022-01-29 | In January 2022, the French Apple news website MacGeneration suffered a data breach . The incident exposed over 100k usernames, email addresses and passwords s… |
| MagicDuel | MagicDuel 138K records2023-08-02 | In August 2023, the MagicDuel Adventure website suffered a data breach that exposed 138k user records . The data included player names, email and IP addresses … |
| mail.ru Dump | mail.ru Dump 16.6M records2014-09-10 | In September 2014, several large dumps of user accounts appeared on the Russian Bitcoin Security Forum including one with nearly 5M email addresses and passwor… |
| MajorGeeks | MajorGeeks 270K records2015-11-15 | In November 2015, almost 270k accounts from the MajorGeeks support forum were breached. The accounts were being actively sold and traded online and included em… |
| MalindoAir | MalindoAir 4.3M records2019-03-01 | In early 2019, the Malaysian airline Malindo Air suffered a data breach that exposed tens of millions of customer records . Containing 4.3M unique email addres… |
| MALL.cz | MALL.cz 735K records2017-07-27 | In July 2017, the Czech Republic e-commerce site MALL.cz suffered a data breach after which 735k unique accounts including email addresses, names, phone number… |
| Malwarebytes | Malwarebytes 112K records2014-11-15 | In November 2014, the Malwarebytes forum was hacked and 111k member records were exposed. The IP.Board forum included email and IP addresses, birth dates and p… |
| Manga Traders | Manga Traders 855K records2014-06-09 | In June 2014, the Manga trading website Mangatraders.com had the usernames and passwords of over 900k users leaked on the internet (approximately 855k of the e… |
| MangaDex | MangaDex 3.0M records2021-03-22 | In March 2021, the manga fan site MangaDex suffered a data breach that resulted in the exposure of almost 3 million subscribers. The data included email and IP… |
| MangaFox.me | MangaFox.me 1.3M records2016-06-01 | In approximately July 2016, the manga website known as mangafox.me suffered a data breach. The vBulletin based forum exposed 1.3 million accounts including use… |
| Mangatoon | Mangatoon 23.0M records2022-05-13 | 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,… |
| Mappery | Mappery 205K records2018-12-11 | In December 2018, the mapping website Mappery suffered a data breach that exposed over 205k unique email addresses. The incident also exposed usernames, the ge… |
| Marcus & Millichap | Marcus & Millichap 1.8M records2026-04-12 | In April 2026, the commercial real estate brokerage firm Marcus & Millichap was named as one of multiple alleged victims of the ShinyHunters hacking and extort… |
| MaReads | MaReads 74K records2025-06-22 | In June 2025, MaReads, the website for readers and writers of Thai-language fiction and comics suffered a data breach that exposed 74k records. The breach incl… |
| Market Moveis | Market Moveis 28K records2023-08-30 | In August 2023, the Portuguese home decor company Market Moveis suffered a data breach that impacted 28k records. The exposed records were limited to names and… |
| Mashable | Mashable 1.4M records2020-06-01 | In approximately mid-2020, Mashable suffered a data breach that subsequently turned up publicly in November 2020. The data included 1.4 million unique email ad… |
| Master Deeds | Master Deeds 2.3M records2017-03-14 | In March 2017, a 27GB database backup file named "Master Deeds" was sent to HIBP by a supporter of the project. Upon detailed analysis later that year, the fil… |
| Mastercard Priceless Specials | Mastercard Priceless Specials 89K records2019-08-20 | In August 2019, the German Mastercard bonus program "Priceless Specials" suffered a data breach . Personal data on almost 90k program members was subsequently … |
| Mate1.com | Mate1.com 27.4M records2016-02-29 | In February 2016, the dating site mate1.com suffered a huge data breach resulting in the disclosure of over 27 million subscribers' information. The data inclu… |
| Mathway | Mathway 25.7M records2020-01-13 | 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 marketpla… |
| MC2 Data | MC2 Data 2.1M records2024-08-18 | In August 2024, data aggregator MC2 Data left a database publicly accessible without a password which was subsequently discovered by a security researcher . Th… |
| MCBans | MCBans 120K records2016-10-27 | In October 2016, the Minecraft banning service known as MCBans suffered a data breach resulting in the exposure of 120k unique user records. The data contained… |
| McGraw Hill | McGraw Hill 13.5M records2026-04-10 | In April 2026, education company McGraw Hill confirmed a data breach following an extortion attempt . Attributed to a Salesforce misconfiguration, the company … |
| MDPI | MDPI 845K records2016-08-30 | In August 2016, the Swiss scholarly open access publisher known as MDPI had 17.5GB of data obtained from an unprotected Mongo DB instance. The data contained e… |
| Mecho Download | Mecho Download 438K records2013-10-31 | In October 2013, the (now defunct) downloads website "Mecho Download" suffered a data breach that exposed 438k records. Data from the vBulletin based website i… |
| MediaWorks | MediaWorks 163K records2023-03-15 | In March 2024, millions of rows of data from the New Zealand media company MediaWorks was publicly posted to a popular hacking forum . The incident exposed 163… |
| MeetMindful | MeetMindful 1.4M records2020-01-26 | In early 2020, the online dating service MeetMindful suffered a data breach that exposed 1.4 million unique customer email addresses. Included in the data was … |
| MemeChat | MemeChat 4.3M records2022-06-01 | In mid-2022, "the ultimate hub of memes" MemeChat suffered a data breach that exposed 7.4M records . Alleged to be due to a misconfigured Elasticsearch instanc… |
| MEO | MEO 8K records2020-12-24 | In early 2023, a corpus of data sourced from the New Zealand based face mask company MEO was discovered. Dating back to December 2020, the data contained over … |
| MGM Resorts | MGM Resorts 3.1M records2019-07-25 | 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 st… |
| MGM Resorts (2022 Update) | MGM Resorts (2022 Update) 24.8M records2019-07-25 | 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 st… |
| Miljödata | Miljödata 870K records2025-08-25 | In August 2025, the Swedish system supplier Miljödata was the victim of a ransomware attack . Following the attack, data was subsequently published on the dark… |
| Mindjolt | Mindjolt 28.4M records2019-03-18 | In March 2019, the online gaming website MindJolt suffered a data breach that exposed 28M unique email addresses . Also impacted were names and dates of birth,… |
| Minecraft Pocket Edition Forum | Minecraft Pocket Edition Forum 16K records2015-05-24 | In May 2015, the Minecraft Pocket Edition forum was hacked and over 16k accounts were dumped public. Allegedly hacked by @rmsg0d , the forum data included nume… |
| Minecraft World Map | Minecraft World Map 71K records2016-01-15 | In approximately January 2016, the Minecraft World Map site designed for sharing maps created for the game was hacked and over 71k user accounts were exposed. … |
| Minefield | Minefield 188K records2015-06-28 | In June 2015, the French Minecraft server known as Minefield was hacked and 188k member records were exposed. The IP.Board forum included email and IP addresse… |
| Minehut | Minehut 397K records2019-05-17 | In May 2019, the Minecraft server website Minehut suffered a data breach. The company advised a database backup had been obtained after which they subsequently… |
| Minted | Minted 4.4M records2020-05-06 | In May 2020, the online marketplace for independent artists Minted suffered a data breach that exposed 4.4M unique customer records subsequently sold on a dark… |
| Misattributed Flipkart Data | Misattributed Flipkart Data 552K records2022-09-02 | In September 2022, over 500k customer records alleged to have been sourced from the Indian e-commerce service Flipkart appeared on a popular hacking forum . Fl… |