![]() I’m sure that many IT Pros use Microsoft Authenticator for all or most of their 2FA codes because that’s what they first used, when MFA was initially required by the company they work for. Usually, every code is only valid for 30 seconds) Microsoft Authenticator I hadn’t, so here we are.įirst, let’s cover some of the abbreviations which I’m going to use in this article.ĢFA = Second Factor Authentication (Password is not enough, you need to either enter a one time code or verify a login in a mobile app) MFA = Multi Factor Authentication (Pretty much the same as 2FA, the term is primarily used by Microsoft) OTP = One Time Password (Usually, a 6 to 8 digit long code received by email or SMS which can only be used once) TOTP = Time Based One Time Password (Usually, a 6 to 8 digit long code which gets generated (and hashed against the current time) by an app. This sparked a private discussion between Andrés Gorzelany and me where he asked me if I had written a blog post about this already. Every once in a while, I come across a random Twitter conversation where people share their struggles and frustrations about the current state of 2FA apps and migrating those codes to a new phone.
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