Twitter to soon allow use of security key as only 2-factor authentication method

American micro-blogging and social networking service Twitter has announced a new update that will let users use security keys as the only authentication method soon, adding that the platform will allow multiple security keys per account instead of just one.

At present, users use a security key to sign in to their Twitter accounts, but you need to have another 2FA method — like an authenticator app or SMS codes — enabled as a backup.

According to The Verge, while authentication applications like Google Authenticator or Authy are safer than using SMS codes for 2FA, security keys — physical keys that connect to your computer using USB or Bluetooth — are the most secure way to protect an account online. Users don’t have to type in a code that could be intercepted by a malicious third party.