How to use a two-factor security key

Two-factor authentication is a good way to add an extra layer of security to online accounts. It requires the use of your smartphone, however, which is not only inconvenient, but it can be a problem if your phone is lost or breached. Hardware security keys can offer an extra layer of security to password-protected online accounts and, in turn, your identity. They’re also not hard to install. Here’s how to set them up for your Google account, Facebook, and Twitter.
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