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

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Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.

Outlook for Web では、画面キャプチャ保護で保護された電子メールを開くと、ブラウザー ウィンドウ全体で画面キャプチャがブロックされる可能性があります。 スクリーン キャプチャを再度有効にするには、ページを更新する必要があります。 [もう一度表示しない] を選択した場合、この情報バーは表示されません。 ページのトップへ. 受信メールに ロック アイコンは、電子メールが暗号化されていることを示します。 S/MIME が暗号化されている場合、Outlook はコンピューターで使用可能な証明書があるかどうかをチェックします。 必要に応じて、キーストアへのアクセス権を付与する必要がある場合があります。 使用可能な証明書がある場合は、メッセージを開くと暗号化が解除されます。

We are releasing a new XBOX Update Preview to the Beta ring today. Continue reading below to learn all about what's included with this update. Note If you have enabled Keep my console up to date, the update will download and install automatically.

Microsoft 365 includes a file protection feature that allows authors to mark a file as Final. This locks the file, preventing any further editing. You can easily turn off this feature in the Microsoft 365 applications; however, you can’t turn it off from your mobile device.

Learn how to open encrypted emails. Outlook protected messages have a banner at the top of the message that informs you of restrictions. Outlook should open the message like normal. Otherwise, follow instructions for opening encrypted or protected mail.

Microsoft Authenticator is a mobile app that helps you sign in to all your accounts without using a password. Microsoft Authenticator is not available for PC or Mac, because authenticator apps are designed for smartphones for security reasons. Learn more. Microsoft no longer supports Authenticator versions that are more than one year old.

Real-time protection is a feature in the Windows Security app that continuously monitors your device for potential threats such as viruses, malware, and spyware. This feature ensures that your device is actively protected by scanning files and programs as they are accessed or executed.