Question

What is two-factor authentication, and why is it an effective access control technique?

Answer 1

It is one of the security purpose for access an account.

It has two ways or multi ways to get into the account.

Here the user is confirmed not by a single process but by a multiple process or two process.

It has been implemented for the betterment of the users account and access techniques.

It involves different ways like passwords, security tokens like facial scan, thumb impression, last logged in device etc.

It again makes security even stronger.

For example if a hacker knows your password he/she cannot log in without your facial scan or thumb impression etc. This makes the hackers a difficult task in doing things.

It is effective because it gives an additional security layer for the access of the control over the accounts.

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