2-factor authentication



Two factor authentication (also called Multi Factor Authentication) is an extra step during login (authentication). 2-factor authentication is used on top of the normal authentication during the authentication process in applications. Usually this is no more than a username and / or email address with the corresponding password.


Two factor authentication requires two or more authentication tools (factors), these tools/factors are:

• Something the user knows (eg a password or a PIN code)
• Something the user has (eg a token or a mobile phone)
• Something that the user is (eg a fingerprint or  an iris scan)


By using two or more factors, the application would be better protected against malicious threats/attacks, such as hackers. The main focus is on "something the user has" because most applications use this.


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