Two Step Authentication, also known as 2SA, is a method of confirming a user's claimed identity by utilizing a combination of two different components. In our case we use your username and password to sign in https://my.maxpay.com as the first factor and a one-time-valid, dynamic passcode, consisting of 6 digits as the second factor. The code is generated off-line by a one-time-passcode-generator - Google Authenticator.
The combination of two different factors to entering your account makes it harder for potential intruders to gain access and steal that person's personal data or identity.