A Guide to Common Types of Two-Factor Authentication on the Web

A Guide to Common Types of Two-Factor Authentication on the Web

In addition to requesting something you know to log in (in this case, your password), an account protected with 2FA will also request information from something you have (usually your phone or a special USB security key).

Two-factor authentication (or 2FA) is one of the biggest-bang-for-your-buck ways to improve the security of your online accounts. Luckily, it’s becoming much more common across the web. With often just a few clicks in a given account’s settings, 2FA adds an extra layer of security to your online accounts on top of your password.

https://www.eff.org/deeplinks/2017/09/guide-common-types-two-factor-authentication-web

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