Two-Factor Authentication (2FA) is also called two-step authentication because if any website or blog has two-step authentication, then whenever a user logs in on it, he/she will have to login even after his/her username – password. To do this, some extra information will also have to be given.
For example, OTP (one time password) via SMS, phone call, OTP via email, QR code, etc. That is, even if someone knows your (1 step) password, you cannot login to your account because other two-step authentication He will also have to steal your phone to complete it.
In this way, two-factor authentication provides an extra security layer to your login process and therefore if you want to protect your personal information or your clients' personal information, then you must also enable two-factor authentication on your sites or blogs.
WordPress does not have any in-built features of two-factor authentication, but in WordPress you will find many free plugins, with the help of which you can enable two-factor authentication in WordPress.