Understanding the Multi-Factor Authentication and Its Different Methods.

In this segment, we are going to understand Multi-Factor Authentication, 2FA, and what are the different methods which are used to implement Multi-Factor Authentication.

Multi-Factor Authentication (MFA) or Two-factor Authentication (2FA) uses two separate strategies to recognize people. 2FA is not a new idea. It is a technology that gives the identification of clients by combining two different and unique components. Some of the first broadly chosen techniques for 2FA were the Bank Card and PIN at ATMs. Since the need to secure such huge numbers of computerized resources has developed, we are battling to implement it in different conditions.

Why do we need Multi-Factor Authentication or 2FA?

Essentially, the strength of the password key doesn’t make a difference over a long period of time. Passwords are not at this point enough with regards to the volume and sensitive nature of the information we have now in the internet world. With the processing power of today, broadly developed botnets that are dedicated to password key breaking and different types of data breaches, you can no longer depend on just a secret phrase to ensure the account access you have. So why bargain with regards to the security of information, access to system accounts, or the chance of giving an attacker a plunder hold into the corporate foundation? On putting forth a valiant effort to increase password complexity, 2FA is the main part of a total protection system.

Multi-Factor Authentication Methods 2FA, Understanding the Multi-Factor Authentication and Its Different Methods., TechRX

While the number of services and sites that give 2FA is expanding, we once in a while consider it in our own enterprise environments. An astounding number of organizations and administrations choose to implement 2FA simply after an enormous scope or high visibility data breaches. The resulting graph, visible above, shows that the patterns don’t look great, while the number of sites supporting 2FA increased from 205 in 2014 to 603 in 2018 during a similar period. This implies that the proportion of sites supporting 2FA scarcely changed throughout the most recent four years: the adoption rate was 53.66% in 2014, 48% in 2016, and back above half in 2017 (50.38%). Source (Elie Bursztein, 2018)

2FA Methods.

There are five different techniques for authentication when implementing a type of 2FA:

1. Something you know, for example, a secret phrase. passphrase, example, or PIN. This is currently the standard with regards to single authentication.

2. Something you have, which would be a physical device that you would carry on in your wallet, or even on a key-chain. These physical devices can come as a token, a card with a magnetic strip, RFID card, or your phone, which could use SMS, pop-up messages through an application, or even a call. Some famous alternatives are the yubikeys, Duo Security, or Google Authenticator.

Multi-Factor Authentication Methods 2FA, Understanding the Multi-Factor Authentication and Its Different Methods., TechRX

3. Something you are, a biometric reading of a unique part of your body, for example, your unique fingerprint or retina, or even your voice signature.

4. Some place you are, it is identified with your area. One of the most well-known techniques for identifying a client’s area is by means of Internet Protocol (IP) addresses.

5. Something you do, it is a sort of authentication which proves identities by watching and observing activities. These activities could be things like signals, gestures or contacts.


2FA depends on different standards. The Initiative for Open Authentication (OAUTH) was developed to make possible collaboration efforts among solid authentication technology providers. It has distinguished HOTP (Hash-Based One Time Passwords), TOTP (Time Based One-Time Passwords) and U2F (Universal Second Factor) as the proper standards. They are used as Out-Of-Band Authentication (OOBA) where, for instance the primary factor would be the local network and the secondary factor would then be performed over the internet or a mobile phone connection. Giving various channels to the authentication techniques essentially expands the trouble for an attacker to increase authenticated access to the system or devices.


There are different ways that 2FA may flop, espe-cially with regards to poor implementation.

Let’s say, organization A concludes that it needs to implement 2FA by using the pop-up message or phone call method. A crook or security researchers come along to break in by either phishing, using passwords from a recent data breach or a password brute-forcing method. Somehow the attackers end up with a genuine username/password combination, yet they ought to be halted from authentication in view of the 2FA, isn’t that so? Well for this situation, the user gets the call or application alert that they have gotten so often before. This notice tells the user that the attacker or researcher is trying to be in. There have additionally been contextual analyses where attackers have used password key reset options to bypass 2FA. Everything comes down to how the implementation has been programmed.

There are numerous different dangers that we won’t get into this moment. In the expressions of Bruce Schneier:  “Two-factor authentication isn’t our friend in need. It won’t protect against phishing. It won’t prevent identity fraud. It takes care of the security issues we had ten years back.”

Two-Factor Authentication is simply one more bit of the security puzzle. It isn’t our friend in need  without a doubt, however it is a basic piece of guard inside and out.


2FA is setting down deep roots and can altogether increase internet security. In the event that there is any sort of remote access in your organization, for example, VPNs, gateways, or email access, 2FA ought to be used as a major aspect of the authentication. Not only for Admins but also for vendors, workers, specialists i.e. everybody. By implementing a 2FA solution in an organization, remote and local access to firewalls, servers, applications, and basic foundation can be made secure. Your personal data is also important. It is additionally recommended that you use 2FA on an individual level for your home records, for example, email, social media, banking and different other services, where it is being implemented.

Final Words.

There are numerous Two Factor Authentication methods that are practically being used today. If they are classified based on usability and security then at that point a large portion of them fall into the classification of security that guarantees the safety of the user’s account information using a second factor, however they lack appropriate usability. The remaining are the authentication methods that are intended to accomplish better usability, yet they lack appropriate security to protect the user from communication channel attacks and spoofed server attacks.

More on Security Topics :

1. Ways To Prevent Identity Theft and Choose a Secure Password

2. Understanding Rootkits and How do they work ?

3. Understanding the Mostly Used Password Cracking Techniques

4. Understanding the Methodologies to Secure the Unix Application Servers

5. Understanding the Working of Viruses and Antiviruses

6. Understanding Password Management and Securing Methods


  • Multi-Factor Authentication Methods 2FA, Understanding the Multi-Factor Authentication and Its Different Methods., TechRX

    My name is Biplab Das. I’m the leader of TechRX and Founder of and Professionally I'm a full-time IT support engineer whose childhood obsession with science fiction never quite faded. A quarter-century later, the technology that I coveted as a kid is woven into the fabric of everyday life. People say smartphones are boring these days, but I think everyone is beginning to take this wonderful technology marvel for granted.

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