Coinbase -Users Discovered an Error in their Account Activity Log Files
The logs showed failed login attempts as failed 2FA codes
The Bug was apparently used in social engineering but there is no evidence
The two-factor approval (2FA) error on Coinbase, one of the largest cryptocurrency-trading platforms in the world, was finally fixed.
In early April, Coinbase customers began to note that their account activity logs showed “2-step verification failed” items. These suggest that someone tried to log in using valid credentials but was only stopped after entering the wrong 2FA code.