Bitcoin Security Forum Gmail Dump data breach: 4.8M accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2014-09-10
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: email addresses, passwords. The breach dates from Jan 9, 2014; Have I Been Pwned loaded it on Sep 10, 2014.
What to do
- If you had a Bitcoin Security Forum Gmail Dump account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
- Expect targeted phishing that quotes the leaked details; verify any unexpected contact out of band.
Sources
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