Data breach
Ethereumethereum.org
16 431 accounts exposed in a breach dated 2016-12-16.
Breached2016-12-16Added to HIBP2016-12-20 UTCUpdated by HIBP2016-12-20 UTCAccounts16 431Domainethereum.org
Verified
What happened in Have I Been Pwned’s words
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.
Exposed data as HIBP classifies it
- Email addresses
- IP addresses
- Passwords
- Private messages
- Usernames
- Website activity
How HIBP qualifies it
- HIBP verified that the data came from this service.
Our report on ethereum.org
Source: Have I Been Pwned (CC BY 4.0)
Copied from HIBP 2026-11-05 03:50 UTC