If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Windows 上的 Xbox 应用 在 Windows 设备上打开 Xbox 应用。 选择“好友”选项卡以展开“好友”列表，或在新窗口中打开它。 右键单击要从列表中报告的人员的玩家代号，然后选择 报告。 选择报告的类别和原因。 请确保从每个列表选择最准确的选项，因为这有助于 Xbox 安全正确调查投诉。 在文本框中 ...

Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which contains a link to a phishing ...

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 The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

當你嘗試在 Windows 上執行應用程式時，Smart App Control 會檢查我們智慧雲端安全服務是否能對其安全性做出有把握的預測。 如果服務認為應用程式安全，Smart App Control 會允許它執行。 如果該應用程式被認為是惡意或可能不受歡迎，Smart App Control 會封鎖它。 如果安全服務無法對該應用程式做出有把握的 ...

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

Press the Start button , and then enter Feedback Hub in the search box. Open the Feedback Hub app, and then select Report a problem. Follow the on-screen instructions to enter the details of the problem. Provide as much detail and context as possible to help us resolve the issue. When you’re done, select Submit.

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 ...

了解如何举报在 Xbox 上行为不当或发布不当内容的玩家。

Learn how to fix email issues for error code 5.7.515 when sending email to Outlook.com (the sending domain does not meet the required authentication level).