Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled. Someone you know, such as a family member, bought something with your card. You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or ...

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。

Find everything you need to manage your Microsoft account, Xbox profile, and more.

Xbox Support ... Xbox Support

找尋您需要了解的有關 Xbox 玩家代號的所有資訊。

Check the Xbox services, games, and apps for any service outages.

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 The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

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 It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.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

Problems with Xbox achievements or challenges? Learn how to fix these errors to safeguard your gamerscore.

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 ...