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

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注意 Microsoft Authenticator 無法 支援 PC 或 Mac，因為認證器應用程式是為智慧型手機設計，出於安全考量。 深入了解。 Microsoft 不再支援超過一年的 Authenticator 版本。 請隨時保持裝置更新。 中國用戶應閱讀 如何在中國下載及使用 Microsoft Authenticator。

There are three ways you can use Microsoft Authenticator with your accounts: Add Authenticator as a way to verify sign-in. This lets you sign in even if you forget your password. Add Authenticator as a way to sign in every time. Using a one-time password code increases account security. This is called two-step verification. Add Authenticator as the only way to sign in - just tap an approval on ...

Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

Microsoft Authenticator FAQs Caution A common trick of attackers is to contact you via text or phone pretending to be your bank, IT support, or other service provider and saying they need you to read them the code from your Authenticator to verify your identity on the call. Don't give them the code - they're trying to break into your account and are stuck at the verification prompt. No real ...

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启用双重验证 或设置 Authenticator 应用 后，如果使用较旧的设备 (（如 Xbox 360）或不支持双重验证的邮件发送安全摄像头) ，可能会遇到问题。 对于这些设备，可以改为使用应用密码登录。 应用密码是随机生成的长密码，在登录不支持双重验证的应用和设备时，你只需提供一次此密码而非常规密码 ...

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