Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how to identify and open encrypted and protected emails no matter what email client you're using.

The App & Browser Control page in the Windows Security app provides essential security settings that protect your Windows device from unsafe apps, files, websites, and downloads.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

1. Use the Microsoft Authenticator phone app to sign in without a password 2. Go passwordless with your Microsoft account 3. Add another way to sign in 4. Avoid staying signed in on a public computer

How tech support scams work Scammers may call you directly on the phone and pretend to be representatives of a tech company. They might even spoof the caller ID so that it displays a legitimate support phone number from a trusted company. They'll probably ask you to install applications that give them remote access to your device. Using remote access, these experienced scammers can ...

iOS Android 在你的 iOS 裝置上安裝 Authenticator 掃描 QR 碼 或從 Apple App Store 下載並安裝 Authenticator。

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。

If you get an email from Microsoft account team and the email address domain is @accountprotection.microsoft.com, it is safe to trust the message and open it. Microsoft uses this domain to send email notifications about your Microsoft account. These notifications can include security codes for two-step verification and account update information, such as password changes. You can check the ...