Data breaches in 2021

The public breach catalog records 78 breaches dated 2021, exposing about 727M accounts. 52 of them (67%) included passwords. The data type exposed most often was email addresses, found in 78 breaches.

2020 had 97 recorded breaches exposing about 1.3B accounts.

Largest breaches

  • Twitter (200M): 2021-01-01, 212M accounts, Email addresses, Names, Social media profiles, Usernames
  • LinkedIn Scraped Data (2021): 2021-04-08, 126M accounts, Education levels, Email addresses, Genders, Geographic locations, Job titles, Names
  • Luxottica: 2021-03-16, 77M accounts, Dates of birth, Email addresses, Genders, Names, Phone numbers, Physical addresses
  • AT&T: 2021-08-20, 49M accounts, Dates of birth, Email addresses, Government issued IDs, Names, Phone numbers, Physical addresses
  • Public Business Data: 2021-08-19, 28M accounts, Dates of birth, Email addresses, Job titles, Names, Phone numbers, Physical addresses
  • Domino's India: 2021-03-24, 23M accounts, Email addresses, Names, Phone numbers, Physical addresses, Purchases
  • ParkMobile: 2021-03-21, 21M accounts, Email addresses, Licence plates, Names, Passwords, Phone numbers
  • SuperVPN & GeckoVPN: 2021-02-25, 20M accounts, Device information, Device serial numbers, Email addresses, Geographic locations, IMSI numbers, Login histories
  • IndiaMART: 2021-05-23, 20M accounts, Email addresses, Names, Phone numbers, Physical addresses
  • Epik: 2021-09-13, 15M accounts, Email addresses, Names, Phone numbers, Physical addresses, Purchases

What was exposed most often

Every breach dated 2021

  • Twitter (200M): 2021-01-01, 212M accounts, Email addresses, Names, Social media profiles, Usernames
  • LinkedIn Scraped Data (2021): 2021-04-08, 126M accounts, Education levels, Email addresses, Genders, Geographic locations, Job titles, Names
  • Luxottica: 2021-03-16, 77M accounts, Dates of birth, Email addresses, Genders, Names, Phone numbers, Physical addresses
  • AT&T: 2021-08-20, 49M accounts, Dates of birth, Email addresses, Government issued IDs, Names, Phone numbers, Physical addresses
  • Public Business Data: 2021-08-19, 28M accounts, Dates of birth, Email addresses, Job titles, Names, Phone numbers, Physical addresses
  • Domino's India: 2021-03-24, 23M accounts, Email addresses, Names, Phone numbers, Physical addresses, Purchases
  • ParkMobile: 2021-03-21, 21M accounts, Email addresses, Licence plates, Names, Passwords, Phone numbers
  • SuperVPN & GeckoVPN: 2021-02-25, 20M accounts, Device information, Device serial numbers, Email addresses, Geographic locations, IMSI numbers, Login histories
  • IndiaMART: 2021-05-23, 20M accounts, Email addresses, Names, Phone numbers, Physical addresses
  • Epik: 2021-09-13, 15M accounts, Email addresses, Names, Phone numbers, Physical addresses, Purchases
  • Unverified Data Source: 2021-01-26, 11M accounts, Bank account numbers, Credit status information, Dates of birth, Email addresses, Employers, Health insurance information
  • Stripchat: 2021-11-05, 10M accounts, Email addresses, IP addresses, Usernames
  • Daily Quiz: 2021-01-13, 8.0M accounts, Email addresses, IP addresses, Passwords, Usernames
  • DatPiff: 2021-08-25, 7.5M accounts, Email addresses, Passwords, Security questions and answers, Usernames
  • START: 2021-06-01, 7.5M accounts, Email addresses, Geographic locations, Names, Passwords
  • Open Subtitles: 2021-08-01, 6.8M accounts, Email addresses, Geographic locations, IP addresses, Passwords, Usernames
  • AndroidLista: 2021-07-28, 6.6M accounts, Email addresses, Names, Passwords, Usernames
  • Aditya Birla Fashion and Retail: 2021-12-01, 5.5M accounts, Email addresses, Genders, Income levels, Job titles, Marital statuses, Names
  • Phone House España: 2021-04-08, 5.2M accounts, Dates of birth, Email addresses, Genders, Names, Nationalities, Phone numbers
  • Robinhood: 2021-11-03, 5.0M accounts, Email addresses
  • Descomplica: 2021-03-14, 4.8M accounts, Email addresses, Names, Partial credit card data, Passwords, Purchases
  • Gemplex: 2021-02-18, 4.6M accounts, Device information, Email addresses, Names, Passwords, Phone numbers
  • Emotet: 2021-01-27, 4.3M accounts, Email addresses, Passwords
  • Adecco: 2021-01-03, 4.3M accounts, Email addresses, Genders, Geographic locations, Marital statuses, Names, Passwords
  • IDC Games: 2021-03-15, 4.0M accounts, Email addresses, Passwords, Usernames
  • FlexBooker: 2021-12-23, 3.8M accounts, Email addresses, Names, Partial credit card data, Passwords, Phone numbers
  • Misattributed Habib's Data: 2021-08-05, 3.5M accounts, Dates of birth, Email addresses, IP addresses, Names, Phone numbers, Social media profiles
  • CoinMarketCap: 2021-10-12, 3.1M accounts, Email addresses
  • MangaDex: 2021-03-22, 3.0M accounts, Email addresses, IP addresses, Passwords, Usernames
  • Ticketcounter: 2021-02-22, 1.9M accounts, Bank account numbers, Dates of birth, Email addresses, Genders, IP addresses, Names
  • Oxfam: 2021-01-20, 1.8M accounts, Bank account numbers, Dates of birth, Email addresses, Genders, Names, Partial credit card data
  • ActMobile: 2021-10-08, 1.6M accounts, Email addresses, IP addresses
  • Date Hot Brunettes: 2021-01-12, 1.5M accounts, Bios, Email addresses, IP addresses, Passwords, Usernames
  • SlideTeam: 2021-04-06, 1.5M accounts, Email addresses, Names, Passwords
  • Bourse des Vols: 2021-01-12, 1.5M accounts, Dates of birth, Email addresses, Flights taken, IP addresses, Names, Phone numbers
  • Dennis Kirk: 2021-09-04, 1.4M accounts, Email addresses, Geographic locations, Names, Phone numbers, Purchases
  • Ducks Unlimited: 2021-01-29, 1.3M accounts, Dates of birth, Email addresses, Names, Passwords, Phone numbers, Physical addresses
  • WedMeGood: 2021-01-06, 1.3M accounts, Email addresses, Genders, Names, Passwords, Phone numbers, Physical addresses
  • CyberServe: 2021-10-29, 1.1M accounts, Dates of birth, Drinking habits, Email addresses, Family structure, Genders, Geographic locations
  • Qraved: 2021-07-09, 985K accounts, Dates of birth, Email addresses, Names, Passwords, Phone numbers
  • Raychat: 2021-01-31, 939K accounts, Browser user agent details, Email addresses, IP addresses, Names, Passwords
  • Imavex: 2021-08-20, 878K accounts, Email addresses, Genders, Names, Partial credit card data, Passwords, Phone numbers
  • KinoKong: 2021-03-25, 818K accounts, Email addresses, IP addresses, Names, Passwords, Usernames
  • Animeify: 2021-10-14, 808K accounts, Email addresses, Genders, Names, Passwords, Usernames
  • ZAP-Hosting: 2021-11-22, 747K accounts, Browser user agent details, Chat logs, Email addresses, IP addresses, Names, Phone numbers
  • HeatGames: 2021-06-12, 648K accounts, Email addresses, Geographic locations, IP addresses, Passwords
  • Atmeltomo: 2021-04-16, 580K accounts, Email addresses, IP addresses, Passwords, Usernames
  • ECCIE: 2021-07-01, 537K accounts, Dates of birth, Email addresses, IP addresses, Passwords, Usernames
  • Short Édition: 2021-06-26, 505K accounts, Dates of birth, Email addresses, Genders, Names, Passwords, Phone numbers
  • Bookchor: 2021-01-28, 498K accounts, Dates of birth, Email addresses, Genders, IP addresses, Names, Passwords
  • Travelio: 2021-11-23, 471K accounts, Auth tokens, Dates of birth, Email addresses, Names, Passwords, Phone numbers
  • Liker: 2021-03-08, 465K accounts, Auth tokens, Dates of birth, Education levels, Email addresses, Geographic locations, IP addresses
  • RedLine Stealer: 2021-12-05, 442K accounts, Email addresses, Passwords, Usernames
  • Jam Tangan: 2021-07-06, 435K accounts, Email addresses, IP addresses, Names, Passwords, Phone numbers, Physical addresses
  • Guns.com: 2021-01-12, 376K accounts, Dates of birth, Email addresses, Names, Partial credit card data, Passwords, Phone numbers
  • BTC-Alpha: 2021-11-02, 362K accounts, Email addresses, IP addresses, Passwords, Usernames
  • OGUsers (2021 breach): 2021-04-11, 348K accounts, Email addresses, IP addresses, Passwords, Usernames
  • JukinMedia: 2021-10-28, 314K accounts, Email addresses, Employers, IP addresses, Names, Occupations, Passwords
  • Carding Mafia (December 2021): 2021-12-28, 304K accounts, Email addresses, IP addresses, Passwords, Usernames
  • Carding Mafia (March 2021): 2021-03-18, 298K accounts, Email addresses, IP addresses, Passwords, Usernames

Frequently asked questions

How many data breaches were there in 2021?

The public breach catalog records 78 breaches dated 2021, exposing about 727M accounts. The number keeps rising for recent years because breaches are often disclosed long after they happen.

What was the biggest data breach of 2021?

Twitter (200M), with about 212M accounts, is the largest breach dated 2021 in this directory.

Were passwords leaked in 2021 breaches?

52 of the 78 breaches dated 2021 (67%) included passwords. If you had an account with any of them, change that password and anywhere you reused it.

Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.