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 It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.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 ...

你有哪些个性化广告选项？ 当你的个性化广告设置为 “打开”时，你将看到基于设备中的数据以及你与我们共享的其他数据的个性化广告，我们认为这些广告对你更有趣和有用。 此数据包括 Xbox 使用情况、站点访问次数和经常浏览的主题。

After you install a Windows update released on or after November 15, 2022, you might receive error messages when you provision and install an app to a device enrolled with a third-party MDM service.

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A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

Learn how to use mobile operator billing as a payment option to buy Xbox subscriptions, games, and other content.

Looking for a complete solution for single sign-on and mobile device management for Microsoft apps and other services too? The Enterprise Mobility Suite gives you a comprehensive solution for iOS, Android, Windows, Windows 10, and over 2,500 popular SaaS apps.

The Microsoft 365 Admin mobile app for iOS and Android lets you manage your Microsoft 365 for business subscription even when you're on the go. Quickly reset a user's password or update billing information.

Microsoft Lens is an app for your iOS device that lets you easily capture, use, and share information from documents, whiteboards, photos, or business cards.

在 iOS 设备上安装 Authenticator 扫描 QR 码或从 Apple 应用商店下载并安装 Authenticator。 重要: Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。