Microsoft Acquires PhoneFactor, The Security Solution That Authenticates Users Via Phone, SMS Or Mobile Apps

Microsoft has acquired PhoneFactor, a service which provides an additional layer of security during the authentication process, which today typically involves just a username and password (aka single-factor authentication). With PhoneFactor, as its name implies, the additional step it offers involves using a phone to further authenticate users upon sign in via a phone call, text, or mobile app.