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The Importance of Two Factor Authentication (2FA)

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In today’s digital age, it is more important than ever to secure our online accounts and protect our sensitive information from cybercriminals. One effective method of doing this is through the use of Two Factor Authentication (2FA). In this article, we will explore what 2FA is, how it works, and why it is so important for online security.

What is Two Factor Authentication?

Two Factor Authentication (2FA), also known as multi-factor authentication, is a security process that requires users to provide two different authentication factors in order to access an online account. The first factor is usually a password or PIN code, while the second factor can be a physical object, such as a security token or a mobile device, or a biometric factor, such as a fingerprint or facial recognition.

Types of 2FA

There are several different types of 2FA available:

SMS authentication: This is where a code is sent to your phone via text message. You then enter the code on the website to authenticate your identity.

Authentication apps: These are apps that generate codes that you can use to authenticate your identity.

Hardware tokens: These are physical devices that generate codes that you can use to authenticate your identity.

Biometric authentication: This is where you use a part of your body to authenticate your identity, such as a fingerprint or facial recognition.

How Does Two Factor Authentication Work?

When a user logs into an online account with 2FA enabled, they will be prompted to provide their first authentication factor, typically their password or PIN. Once this is verified, the user will then be prompted to provide their second factor of authentication, such as a unique code sent to their mobile device or a fingerprint scan. Only when both factors are verified will the user be granted access to their account.

Why is Two Factor Authentication Important?

Two Factor Authentication is an important security measure for several reasons:

Stronger Security: 2FA significantly strengthens the security of online accounts as it adds an additional layer of protection beyond just a password. This makes it much more difficult for cybercriminals to gain access to sensitive information or carry out malicious activities.

Protection Against Password Attacks: Password attacks, such as brute force attacks and phishing scams, are becoming increasingly sophisticated. 2FA helps protect against these attacks by requiring an additional layer of authentication beyond just a password.

Compliance with Regulations: Many industries are required by law to implement 2FA in order to comply with regulations around data protection and privacy.

Ease of Use: Many 2FA systems are easy to use and can be set up quickly. Some systems even allow users to use biometric factors, such as fingerprints or facial recognition, which can be more convenient than typing in a code or using a physical token.


2FA is an essential security feature that can help protect your online accounts from cybercriminals. By requiring two different forms of identification, it makes it much harder for hackers to gain unauthorised access to your account. If you haven’t already enabled 2FA on your online accounts, we highly recommend that you do so as soon as possible.

To read a bit more about 2FA we would recommend having a look at what Microsoft have to say. What is two-factor authentication (2FA)? | Microsoft Security

Contact us at or 01953 857980 for a free audit and friendly discussion on how we can help.


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