Authentication is the process of verifying that a user is really who he or she claims to be. The most common type of authentication is a user logging into a computer system with a user ID and a password, which is an example of a single factor authentication.

Two factors authentication is used to enhance the security in authentication. It requires two types of information to perform the authentication process. Typically, this involves a password and a second factor such as a private key, a smart card or a biometric factor (e.g. iris or fingerprint), etc.
 
Authentication is the process of verifying that a user is really who he or she claims to be. The most common type of authentication is a user logging into a computer system with a user ID and a password, which is an example of a single factor authentication.

Two factors authentication is used to enhance the security in authentication. It requires two types of information to perform the authentication process. Typically, this involves a password and a second factor such as a private key, a smart card or a biometric factor (e.g. iris or fingerprint), etc.
 
Level:
Duration:
Authentication is the process of verifying that a user is really who he or she claims to be. The most common type of authentication is a user logging into a computer system with a user ID and a password, which is an example of a single factor authentication.

Two factors authentication is used to enhance the security in authentication. It requires two types of information to perform the authentication process. Typically, this involves a password and a second factor such as a private key, a smart card or a biometric factor (e.g. iris or fingerprint), etc.
 
Level:
Duration: