What is Multi-factor authentication?

In security implementation, we use Multi-factor authentication (MFA). In MFA, a user is authenticated by multiple means before giving access to a resource or service. It is different from simple user/password based authentication.

The most popular implementation of MFA is Two-factor authentication. In most of the organizations, we use username/password and an RSA token as two factors for authentication.

With MFA, the system becomes more secure and it cannot be easily hacked.

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