It's Twitter's turn to jump on the two factor bandwagon. I'm sad that it didn't happen sooner, but still happy to see them joining the ranks of Apple, Yahoo, Google, Microsoft and Facebook.
Please, please, please consider turning on two factor authentication on your accounts! Yet another industry colleague found their Twitter account hacked yesterday, used to send me some sort of weight loss spam link. If they had turned on two factor authentication, I don't think that would have happened. Two factor authentication really does improve your chances that you'll keep bad guys from accessing your accounts and data.