Two-factor authentication (2FA), also known as two-factor verification or multi-factor authentication is an extra layer of security for your online accounts. Rather than just using a password to access your account, you will also need something else to authenticate yourself. This may come in the form of:
An SMS text message containing a security code sent to your phone
A physical device such as a USB key or smart card
An authenticator app on your mobile device (these generate security codes linked to your accounts)
- Biometrics such as retina, fingerprint or face scanning
2FA may seem like a hassle, but it makes it much more difficult for cyber criminals to steal your data and money. 2FA is a valuable security feature and should be used wherever possible.
So, what kind of websites should you consider using 2FA?
Online banking (most banks now use 2FA by default)
Email clients (e.g. Gmail, Yahoo, Hotmail etc.)
Online stores (particularly those which have your bank details stored)
Social media (e.g. Facebook, Snapchat etc.)
- Any other sites that contain information you wouldn’t want a stranger knowing
You can check to see what popular websites support 2FA here: https://2fa.directory/