able to be called a Two-factor authentication, also known as 2FA, is an electronic authentication technique that limits access to a specific website or application by requiring the user to provide two or more forms of identification. A primary goal of multifactor authentication is to prevent unauthorised access to any network, application, system, or website.

HOW AUTHENTICATION WORKS

Generally, in order to gain access to a specific website, system, network, or application, the user must authenticate themselves. Usually, in order to gain access, the user must supply a password or pin (personal identification number); however, if these details are entered incorrectly, the user will not be allowed to access the system. Usually, in order to gain access, the user must supply a password or pin (personal identification number); however, if these details are entered incorrectly, the user will not be allowed to access the system. Furthermore, the user is required to furnish proof in multiple ways, such as through the utilisation of biometrics, OTPs (one-time passwords), facial recognition, and pin security questions. I will go over the various popular forms of authentication in the following section.

METHODS OF AUTHENTICATION

1.Something the user has

2.Something the user knows

3.Something the user is

1.Something the user possesses: this can be any tangible object the user owns, such as badges, smart cards, USB drives, and security tokens.

2.Something the user knows: This can be answers to security questions about passwords, pins, and OTPs.

3.Something the user is: instances of facial recognition, fingerprint, retinal scanning, and biometric

Taking money out of an ATM is the most typical application of multi-factor authentication (MFA). The user must enter their unique pin combination in order to access the system; if the combination is entered incorrectly, the user's attempt to access the system is unsuccessful. Occasionally, the unauthorised user is actually a hacker or scammer rather than the person who is trying to access the system at all. Using multi-factor authentication (MFA) and a strong password combination are recommended measures to safeguard your account and prevent unauthorised access.

ADVANTAGES OF AUTHENTICATION APPs

1. The application is typically linked to the user's phone, making it inaccessible unless the user's phone is stolen.

2. This technique generates OTPs more quickly and is independent of the network and any provider.

3. Mobile data is not needed in order to access the code.

4. It is simple to set up.

5.You will not lose your code if you switch devices because it will be backed up online.

HOW TO CONNECT GOOGLE AUTHENTICATION APP TO YOUR GREY ACCOUNT

This method is simple and it can be achieved by following this simple steps written by Chioma Mmeje Click on the link below

Have you ever experienced difficulty in getting OTP via SMS?

When it comes to security and preventing unauthorised access, there are a number of methods to choose from. Based on my experience and years of use, authentication apps offer our systems greater protection.