The single most important security precaution you can take with high-value online accounts is to enable a mobile device as a secondary identity factor. Which authenticator app should you choose ...

To get Microsoft Authenticator on your watch, open the Watch app on your iPhone. Search for and download the app if you don’t already have it.

It won’t change much about your digital life though. All you have to do is copy and paste an extra code each time you log in to a service with the authenticator app enabled. What to look for in ...