On Thursday, Sakurity published an exploit on their blog regarding Authy's SMS 2-Factor Authentication API. The bug allows for an attacker to bypass the now notorious 2FA window with the string
../sms
Coinbase is one of Authy's customers, who claims to "take careful measures to ensure that your bitcoin is as safe as possible." The bitcoin webwallet provider has been a vocal advocate of 2FA, popularizing it to the point of Gavin proposing its inclusion in Bitcoin Core. Continue reading