Bitcoin Security Forum Gmail Dump – Jan 09, 2014

On  Jan 09, 2014  attack happened.  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.  On   Sep 10, 2014   only breach discovered.