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How to set up two-factor authentication on all your online accountsĪ setup process is necessary before you can use a security key. The best thing to do is to check the website of your security key of choice and see which services are supported - for example, here’s a link to the apps supported by YubiKeys. Many sites support U2F security keys, including Twitter, Facebook, Google, Instagram, GitHub, Dropbox, Electronic Arts, Epic Games, Microsoft account services, Nintendo, Okta, and Reddit. The key then cryptographically signs and allows the challenge, logging you in to the service.
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When you insert a security key into your computer or connect one wirelessly, your browser issues a challenge to the key, which includes the domain name of the specific site you are trying to access. They use a variety of authentication standards: FIDO2, U2F, smart card, OTP, and OpenPGP 3. Security keys can connect to your system using USB-A, USB-C, Lightning, or NFC, and they’re small enough to be carried on a keychain (with the exception of Yubico’s 5C Nano key, which is so small that it’s safest when kept in your computer’s USB port). Here’s how to set them up for your Google account, Facebook, and Twitter. Hardware security keys can offer an additional layer of security to password-protected online accounts and, in turn, your identity. It requires the use of your smartphone, however, which is not only inconvenient, but can be a problem if your phone is lost or breached. Two-factor authentication is a good way to add an extra layer of security to online accounts.