There are different types of security keys that you can use, like a USB key that you plug in to your device or an NFC key that you tap on an NFC reader. Make sure to familiarize yourself with the type of security key you have by reading the instruction manual from the manufacturer.

Choose your alternative verification method, and continue with the two-step verification process. After you're back in your account, you can update your verification methods (if necessary). For more info about add or changing your methods, see the Manage your settings for two-step verification article. Next steps Learn about your security info in the Security info (preview) overview article ...

Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.

Important: With two-step verification, you always need two forms of identification. This means that if you lose your phone, your password alone won't get you back into your account. For that reason, we strongly recommend you have three different sign-in methods associated with your account.

Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.

你可以使用不同类型的安全密钥，例如插入设备的 U 密钥或在 NFC 读卡器上轻扫的 NFC 密钥。 请务必阅读制造商的使用说明书，熟悉你的安全密钥类型。

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

Learn how to add all your different accounts to the Microsoft Authenticator app.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.