Some banks have been using customer card readers for over a decade. So, to log into a website, you would have to type a password (something you know), then enter a code sent to your smartphone (something you own).ĢFA isn’t new and you’re likely to be familiar with it if you use internet banking. The ‘something you know’ element of a username and password is coupled with a physical item – ‘something you own’ – such as a mobile phone or a USB key. The strength of two-factor authentication (2FA for short) is that knowing (or guessing) login details isn’t enough to access an account.
2 Best Way to Use Google Authenticator on a Windows 10 PC Two-factor authentication:.
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