How to do multifactor authentication?

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Inherence: things that prove who the user really is, such as biometrics or voice recognition. Examples:

Fingerprints, facial recognition, voice scanning, retina or iris scanning or other biometrics;
Behavioral Analysis.
What is the difference between multi-factor authentication and two-factor authentication (2FA)?
Multi-factor authentication is often used interchangeably with two-factor authentication (2FA).

2FA is basically a subset of MFA, as 2FA restricts the number of factors required to just two factors, while MFA can be two or more.

MFA can be very simple or even more complex, such as always requiring authentication using one or more distinct factors (e.g. password, token, and biometrics) for stronger authentication.

Another alternative is to do a more customized implementation , considering the service provider's risk policies.

Example of multifactor authentication in a financial institution
In the example of a digital banking app, for example, the user must log in to the app with a password. To move funds, however, the user must present biometrics.
In addition, whenever the bank considers the transaction to be high risk based on its value, recipient or time of day, the user must click on a PUSH notification sent in the bank's app.
In this example, we see that multifactor authentication is progressive : as the increasing risk of the transaction increases, additional factors are required to log in and carry out financial transactions.

Image shows a person trying to hack into a system and being blocked
With multifactor authentication, the attacker is faced with layers of protection that make it difficult to access the target.
The goal of multifactor authentication is to provide a multi-layered defense system. This ensures the authenticity of the user and helps ensure that only authorized individuals have access to protected systems. Even if one factor is compromised, new barriers emerge to block the attacker.

For example, if someone's computer dominican republic telegram phone numbers password is stolen, the attacker will still need more than just that information to successfully break into an account.

According to data from Verizon’s 2022 Data Breach Investigation Report , 80% of data breaches involve weak or stolen credentials. Multi-factor authentication can prevent this

To successfully implement MFA in your organization, users need to have the correct combination of multiple authentication factors.

For example, to log in to a secure program, an employee might need to enter a password (something the user knows) and enter a hardware token number (something the user has).

Thus, only the correct password combined with the correct hardware token number grants access to the user.

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