See how to view the details for signatures and certificates.

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

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.

Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert. If your phone number or email changes, it's important to promptly update the security contact info on the Security basics page so we can work with ...

Mail. Outlook for iOS and Android also connects to OneDrive, OneDrive for Business, Dropbox, Google Drive & Box. Note: To find out if your iOS or Android device can run the Outlook app, see system requirements. Outlook for iOS and Android videos

Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

iOS currently supports Xbox One controllers with Bluetooth capability, Xbox Wireless Controllers included with Xbox Series X|S, Xbox Elite Wireless Controller Series 2, and the Xbox Adaptive Controller.

本文仅适用于设置电子邮件帐户！ 如果在使用 Outlook iOS 应用时遇到问题，请访问我们的 常见问题解答以获取更多自助信息。 如果工作或学校帐户使用 Microsoft 365 商业版 的或基于 Exchange 的帐户，则 IT 管理员可能会设置其它要求。

Download and install Microsoft Authenticator app Download and install the Microsoft Authenticator app for Android, iOS or Windows Phone. Set up the Microsoft Authenticator app Choose the mobile app Open a browser on your computer and go to portal.office.com. Sign in to your Office 365 for business account.

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