What is Two-Factor Authentication?
Two-factor authentication (2FA) sounds complex but it’s not, it’s just a way of 'double-checking' that you’re really the person you’re claiming to be when you log into your online accounts, such as banking, email or social media.
It’s using something you know, like a password (1st factor), plus something you own, like a phone or security token, or something you have, like a fingerprint, voice ID or face ID (2nd factor).
Why is it important?
2FA makes it harder for someone else to access your online accounts. For example, even if a cybercriminal guessed or stole your password they wouldn’t be able to perform an online transaction without your 2nd factor.