This new and optional feature will roll out to all Microsoft accounts over the next few days. The two-factor authentication works very much like the two-factor authentication schemes being used today in other Microsoft products making it familiar to most users. Besides your usual password, you will also need a second piece of information which can be a short code. For the user to obtain the codes, Microsoft also launched their own Authenticator app for Windows Phone, but the company also notes that “there are excellent authenticator apps that already exist for those platforms and are compatible with Microsoft account two-step verification. Read the full story right here.