Data breach

Ethereum data breach

16,431 accounts · breached December 16, 2016

What happened

In December 2016, the forum for the public blockchain-based distributed computing platform Ethereum suffered a data breach. The database contained over 16k unique email addresses along with IP addresses, private forum messages and (mostly) bcrypt hashed passwords. Ethereum elected to self-submit the data to HIBP, providing the service with a list of email addresses impacted by the incident.

Description by Have I Been Pwned

What data leaked

  • Email addresses
  • IP addresses
  • Passwords
  • Private messages
  • Usernames
  • Website activity

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.

Check your email at haveibeenpwned.com

We do not run email lookups ourselves. The search is done on haveibeenpwned.com, the service this list comes from.

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