Illustration by Alex Castro / The Verge

In March, Twitter said it would soon let you use a security key as your only two-factor authentication method, and on Wednesday, it announced that feature was live on both mobile and web.

Being able to use a security key as one of your two-factor authentication methods isn’t new, but now you can make it the only one, if you want to. Physical security keys have advantages over other two-factor methods like an authenticator app or SMS because they don’t rely on a code that a bad actor could intercept.

Now security keys can be your one and only two-factor authentication method on mobile and web.

Learn more about how security keys can protect your account from attacks:

— Twitter Support…

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