Getting started with login verification | Twitter Blog

So it turns out that less than a week ago, Twitter quietly implemented two-factor authentication, which could have really helped protect me form this attack.  I have been begging for more security on my account for a while but Twitter either didn’t tell anyone about this, or I missed it while I was immersed in DrupalCon Portland all week.

Every day, a growing number of people log in to Twitter. Usually these login attempts come from the genuine account owners, but we occasionally hear from people whose accounts have been compromised……