![]() After that you'll just need your primary factor, usually a password, like you do now. Some people worry that multifactor authentication is going to be really inconvenient, but generally it's only used the first time you sign into an app or device, or the first time you sign in after changing your password. You won't have to do the second step very often. Microsoft Authenticator can be used not only for your Microsoft account, and work or school accounts, you can also use it to secure your Facebook, Twitter, Google, Amazon, and many other kinds of accounts. ![]() And the 6-digit number in Microsoft Authenticator changes every 30 seconds, so even if they knew the number you used to sign in yesterday, they're still locked out. If somebody else tries to sign in as you, however, they'll enter your username and password, and when they get prompted for that second factor they're stuck! Unless they have YOUR smartphone, they have no way of getting that 6-digit number to enter. You open the app on your smartphone, it shows you a unique, dynamically created 6-digit number that you type into the site and you're in. Perhaps you're using the Microsoft Authenticator app as your second factor. The first time you sign in on a device or app you enter your username and password as usual, then you get prompted to enter your second factor to verify your identity. If that's all you need then anybody who knows your username and password can sign in as you from anywhere in the world!īut if you have multifactor authentication enabled, things get more interesting. Let's say you're going to sign into your Microsoft account or work or school account, and you enter your username and password. How does multifactor authentication work? Something you are - Like a fingerprint, or facial recognition. Something you have - Like a smartphone, or a secure USB key. Something you know - Like a password, or a memorized PIN. The three most common kinds of factors are: For example, a password is one kind of factor, it's a thing you know. ![]() When you sign in on a new device or from a new location, we'll send you a security code to enter on the sign-in page. Learn how you can use the Microsoft Authenticator app or authenticate using Outlook for Android.A factor in authentication is a way of confirming your identity when you try to sign in. Two-step verification begins with an email address (we recommend two different email addresses, the one you normally use, and one as a backup just in case), a phone number, or any authenticator app. When two-step verification is turned off, you will only have to verify your identity with security codes periodically, when there might be a risk to your account security. If you turn on two-step verification, you’ll get a security code to your email, phone, or authenticator app every time you sign in on a device that isn't trusted. What happens when you turn on two-step verification? For that reason, we strongly recommend you have three pieces of security info associated with your account, just in case. Or if you lose your contact method, your password alone won't get you back into your account-and it can take you 30 days to regain access. ![]() This means that if you forget your password, you need two contact methods. Important: If you turn on two-step verification, you will always need two forms of identification.
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