About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Developers have made amazing games and content for the Xbox network. To protect customers and developers, we provide a safe and secure way to make purchases in the Microsoft Store. To maintain this security, Xbox monitors for instances of marketplace theft or solicitation from the Xbox community.

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 It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.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

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 The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

获取将数字 Xbox 游戏或订阅作为礼品发送给他人时遇到的问题的帮助。

Get more information about managing your Xbox subscriptions, issues with billing, and more.

为了帮助你更好地了解我们的流程，我们提供了每种强制措施类型的详细信息以及这些措施对你的 Xbox 档案或设备的影响。

我们竭尽所能，确保 Xbox 网络是欢迎所有人的安全之处，但我们自己独木难支。 如果你认为某玩家违反了 Microsoft 服务协议和 Xbox 社区标准，请进行举报，帮助我们调查违规实例。

您可以在 Xbox 主機或 web 上檢視 Xbox 購買記錄。 使用以下步驟檢閲您的資訊或取得您不認識的費用之説明。

Xbox Support 提供有关 Xbox、Game Pass 和账单问题的帮助，并通过社区提供建议和客户服务。