Data breach
Bitcoin Security Forum Gmail Dumpforum.btcsec.com
4 789 599 accounts exposed in a breach dated 2014-01-09.
Breached2014-01-09Added to HIBP2014-09-10 UTCUpdated by HIBP2014-09-10 UTCAccounts4 789 599Domainforum.btcsec.com
Verified
What happened in Have I Been Pwned’s words
In September 2014, a large dump of nearly 5M usernames and passwords was posted to a Russian Bitcoin forum. Whilst commonly reported as 5M "Gmail passwords", the dump also contained 123k yandex.ru addresses. Whilst the origin of the breach remains unclear, the breached credentials were confirmed by multiple source as correct, albeit a number of years old.
Exposed data as HIBP classifies it
- Email addresses
- Passwords
How HIBP qualifies it
- HIBP verified that the data came from this service.
Source: Have I Been Pwned (CC BY 4.0)
Copied from HIBP 2026-11-05 03:50 UTC