Data breach

Gab data breach

66,521 accounts · breached February 26, 2021

Have I Been Pwned treats this breach as sensitive: it does not reveal publicly whether a particular address is in it. Only the owner of an address can check, after verifying it.

What happened

In February 2021, the alt-tech social network service Gab suffered a data breach. The incident exposed almost 70GB of data including 4M user accounts, a small number of private chat logs and a list of public groups and public posts made to the service. Only a small number of accounts included email addresses and / or passwords stored as bcrypt hashes with a total of 66.5k unique email addresses being exposed across the corpus of data.

Description by Have I Been Pwned

What data leaked

  • Avatars
  • Email addresses
  • Names
  • Passwords
  • Private messages
  • Usernames

What to do if you had an account

  1. Change the password. Change your password on this service. If you used the same password anywhere else, change it there too: attackers try leaked email and password pairs on other sites automatically. A password manager makes one unique password per site practical.
  2. Turn on two-step sign-in. Enable two-factor authentication where the service offers it, preferably with an authenticator app or a passkey. A leaked password alone is then not enough to get in.
  3. Expect targeted phishing. Leaked contact details are used to write convincing fake messages that mention the breached company or your real name. Do not click links in unexpected emails or texts about this account; go to the site by typing its address.

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