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Ethereum

Disclosed Dec 20, 20169 years ago16,431 accountsUnverified

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.

What is known

People affected16,431 (accounts in the leaked data, per Have I Been Pwned)
DisclosedDec 20, 2016
HappenedDec 16, 2016
AttackNot stated
Data exposedEmails, IP addresses, Passwords, Dates of birth, Messages
SectorTech
StatusUnverified: not yet confirmed by an official notice, a filing or the organization
Check your emailHave I Been Pwned

Sources

Source
Have I Been Pwned: Ethereumhaveibeenpwned.com · Aggregator

Notices filed

WhereFiledPeople
Have I Been Pwnedaccounts in the dataDec 20, 201616,431
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

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