Secure messages with a digital ID in Outlook - Microsoft Support
Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
Create and add an email signature in Outlook - Microsoft Support
How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, Microsoft Office, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
View protected files with Microsoft Purview Information Protection ...
These viewers can open protected text files, protected image files, protected PDF files, and all files that have a .pfile file name extension on Windows, Android, or iOS.
Download Microsoft Authenticator - Microsoft Support
To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store. Get the app
適用於行動裝置的 Microsoft Edge 常見問題集
使用適用於 Android 和 iOS 裝置的新 Microsoft Edge 以隨時隨地進行瀏覽。 Microsoft Edge 提供更嚴密的保護和隱私權，能跨桌上型電腦和行動裝置同步我的最愛、密碼等。
Send S/MIME or Microsoft Purview encrypted emails in Outlook
Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft Office, New Outlook for Windows, Outlook Web App
Signing in with a passkey - Microsoft Support
What are passkeys? Passkeys are a replacement for your password. With passkeys, you can sign into your Microsoft personal account or your work/school account using your face, fingerprint, or PIN. Signing in with a passkey is simple and fast and helps protect you against phishing attacks. Passkeys are supported on desktop and mobile browsers (mobile app support is coming soon). You can use ...
Applies To:
Microsoft account dashboard
Use Microsoft Authenticator with Microsoft 365
Download and install Microsoft Authenticator app Download and install the Microsoft Authenticator app for Android, iOS or Windows Phone. Set up the Microsoft Authenticator app Choose the mobile app Open a browser on your computer and go to portal.office.com. Sign in to your Office 365 for business account.
下载Microsoft Authenticator - Microsoft 支持
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。 ... 1 对于 iOS，推送通知仅通过 QR 码扫描工作。
Microsoft Support
Microsoft Support