Let's take a good look at the clues in this example that pretends to be a subscription confirmation to Norton LifeLock. 1. The sender address. The sender's email address is often the first clue that the message is a fake. In this example they haven't even tried to make it look real.

A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered.

If you'd like to gain early access to updates and test new features, then we'd love to have you as a Microsoft To Do Insider on our Windows 10, Android, and iOS beta apps.

Send digitally signed messages as clear text if you want to make sure that your digitally signed messages can be opened by all recipients, even if they do not have an S/MIME mail application and can't verify the certificate.

Thanks for your help and hopefully you'll enjoy some of our features before the public receives them! Because we have limited spots, it might take some time for you to get an invitation. But as soon as there are some available, we'll be sending you a message. Was this information helpful?

The codes don't require you to be on the internet or connected to data, so you don't need phone service to sign in. Additionally, because the app stops running as soon as you close it, it won't drain your battery.

如果您想要提前取得更新並測試新功能，我們樂意將您做為 Microsoft To Do 的 Windows 10、Android 和 iOS Beta 版 app。 若要下載我們的 Windows Beta 版應用程式，您必須 成為 windows 測試人員。

更新プログラムにいち早くアクセスして新機能をテストする必要がある場合は、Windows 10、Android、および iOS のベータ版アプリの Microsoft To Do Insider としてお客さまにご利用ください。

Für Android können Sie unsere Beta-App nutzen, indem Sie unserer öffentlichen Android-Insider-Gruppe beitreten. Für iOS müssen Sie zuerst TestFlight auf Ihrem iOS-Gerät installieren.

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