2025年3月4日 · With phone call verification during SSPR or Microsoft Entra multifactor authentication, an automated voice call is made to the phone number registered by the user. To complete the sign-in process, the user is prompted to press # on their keypad.

You can set up your mobile device to act as your two-factor verification method. Your mobile phone can either receive a text message with a verification code or a phone call. Note: If the authentication phone option is greyed out, it's possible that your organization doesn't allow you to use a phone number or text message for verification.

If you want phone calls to be the default method used when you sign-in to your work or school account using two-factor verification or for password reset requests, you can set it from the Security info page.

Use simple, fast, and highly secure two-factor authentication across apps. Set up Microsoft Authenticator and add your accounts. Know your accounts are safer with two-step verification using one-time passcodes and push approvals in Microsoft Authenticator.

By setting up MFA, you add an extra layer of security to your Microsoft 365 account sign-in. For example, you first enter your password and, when prompted, you also type a dynamically generated verification code provided by an authenticator app or sent to your phone.

2023年10月25日 · 多因子认证MFA（Multi-Factor Authentication）是一种安全认证过程，需要用户提供两种及以上不同类型的认证因子来表明自己的身份，获得系统或设备的访问权限，提高认证的安全性。

2025年3月4日 · 用户仍然可以在多重身份验证 (MFA) 或自助服务密码重置 (SSPR) 期间使用移动电话或办公室电话号码作为辅助的身份验证形式进行身份验证。 对于使用短信的直接身份验证，可以 为用户配置和启用基于 SMS 的身份验证。 短信对一线工作人员来说很方便。 使用短信时，用户无需知道用户名和密码即可访问应用程序和服务。 用户的验证方式改为：输入其注册的手机号码，收到带有验证码的短信，并在登录界面中输入该验证码。 具有试用订阅的 Microsoft Entra …

2024年12月13日 · If you still have access to one of the authentication method you were using previously for MFA, you can use the Security info page to add the new method of authentication from new phone and delete the old authentication methods you don't want. Change your two-step verification method and settings - Microsoft Support

2021年12月23日 · On your phone or tablet you'll need to install the Microsoft Authenticator application from the Apple App Store or the Google Play Store. 2. Log into the Microsoft 365 Additional Security Page. Go to https://aka.ms/mfasetup to access this page. When you login, use your work email and password.

2019年7月24日 · First phone (main phone) is already using the Authenticator App without problem. Now we need to register a second phone as backup device (and with an alternative cellular carrier) and a iPad as third device. All devices should use the Authenticator App.