Ethereum
Disclosed Dec 20, 201616,431 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 affected | 16,431 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Dec 20, 2016 |
| Happened | Dec 16, 2016 |
| Attack | Not stated |
| Data exposed | EmailsIP addressesPasswordsDates of birthMessages |
| Sector | Tech |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Check your email | Have I Been Pwned |
Sources
Notices filed
History of this record
First recordedby backfillSource
First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.