What is Multi-Factor Authentication and How It Works?

  • eMudhra Limited
  • March 13, 2023
Multi-Factor Authentication (MFA): What is MFA and How It Works?

What is Multi-Factor Authentication (MFA)?

Multi-factor authentication (MFA) is a multi-step account login process that requires users to provide more information than just a password. Users can be asked to scan their fingers, enter a code that was sent to their email address, or answer a hidden question. Using a second form of authentication can help avoid fraud if a system password has been hacked.

MFA (Multi-Factor Authentication) is primarily a security mechanism that is deployed to ensure security in the digital ecosystem while accessing a system or identification of authorized personnel. The process of identifying the authorized personnel to grant access is known as “authentication”.

Traditionally, authentication was only limited to the use of passwords and usernames, while the process is still used, MFA provides additional functionalities. The sole dependency on username and password as an authentication factor is inefficient. As usernames are easily discoverable and the passwords used can be weak, thus decryptable, leading to potential cyber threats. Hence, Multi-Factor Authentication provides an additional level of security for your IT ecosystem. 

The most common forms of authentication used in MFA include:

  • Knowledge factors, such as a password or PIN
  • Possession factors, such as a physical token
  • Inherence factors, such as biometric information

By combining two or more of these factors, MFA provides an additional layer of security to protect user accounts and data. For example, in addition to entering a password, a user might be required to enter a one-time code generated by a mobile app or sent via SMS to their phone.

How Does Multi-Factor Authentication (MFA) Work?

MFA is a crucial part of Identity and Access Management. MFA verifies the identities by mandating users to provide different information (also known as factors) to gain access to an account or application. This is done to ensure that only authorized users can gain access to sensitive information. MFA typically involves the use of at least two of the following factors:

  • Knowledge factor: This could be a password, PIN, or answer to a security question. Since it depends on manual intervention, users often use a weak password, or a single password is used on multiple platforms, thus exposing them to potential threats of phishing and social engineering attacks.

  • Possession factor: This could be a physical token, such as a smart card or a security key and mobile phone. For example, SMS authentication sends a code or one-time password (OTP) to a user’s mobile device for verification. This method of MFA provides a medium level of security.

  • Inherence factor: This could be a biometric factor, such as a fingerprint or facial recognition. One of the key benefits of this mode of authentication is that users do not have to memorize or store these factors, thus providing optimal ease of use. Additionally, it provides the highest level of security.

Let us briefly look at the steps involved in multi-factor authentication.

As an initial step in the authentication process, a user is asked to provide the username and password as the first factor of authentication while attempting to log in to an application or a system. In the following step depending on the security settings, users might be asked to provide a second factor. It can be an OTP or biometric information like fingerprint or facial recognition. Once the identity is verified the user is authenticated to access the system or application. Adding a second layer of security minimizes the threat of man-in-middle attacks, as it is much harder for an attacker to impersonate the user and gain access to their account.

Why is MFA Used?: Need and Importance of Multi-Factor Authentication

It is well established that the world is moving towards man-machine workload, while the end-to-end digitization of processes has offered tremendous ease of use, it has also exposed critical data to potential cyber threats thus generating the need for strong security solutions.

This challenge can be tackled through the identity-first approach, which is what MFA essentially provides. Multi-factor authentication is a critical security requirement of every organization, irrespective of size and industry. The specific use cases of MFA in Identity and Access Management (IAM) include:

  1. Increased security: MFA adds an extra layer of security by requiring additional authentication factors beyond just a password.

  2. Compliance: Many industries and regulatory bodies require the use of MFA as part of their compliance standards. For example, the Payment Card Industry Data Security Standard (PCI DSS) requires the use of MFA for certain types of transactions.

  3. Protection against password-based attacks: Passwords are often the weakest link in security, and MFA helps to protect against attacks like phishing, where a user is tricked into giving away their password.

  4. Remote access: MFA can be especially important for remote access, where users are not on a company's secure network. This can help protect against unauthorized access attempts from outside of the network.

  5. User experience: While MFA may add an extra step to the authentication process, it can also provide a better user experience in the long run. For example, if a user forgets their password, they can use another factor to verify their identity and reset their password, instead of going through a lengthy process of resetting their account.

Overall, the use of MFA can help organizations increase security, meet compliance requirements, and provide a better user experience.

Adaptive Multi-factor Authentication: What Is It & What Sets It Apart?

Adaptive multi-factor authentication also known as Risk-Based Authentication is a security process that assesses the probability of account compromise with each login. What sets adaptive MFA apart from traditional MFA is that it uses machine learning algorithms and risk assessment to determine the level of security required for each user login attempt. The system can analyze various factors such as location, device type, IP address, time of day, and user behavior patterns, to assign a risk score to the login attempt.

If the risk score is low, the user may be granted access with only one factor of authentication, such as a password. However, if the risk score is high, the system may require additional factors of authentication, such as a fingerprint or facial recognition scan, to ensure the identity of the user. It takes the following contextual user considerations into account for dynamically regulating the authentication steps:

  • Number of failed login attempts
  • Geographical location of the user
  • Geo-velocity or the physical distance between consecutive login attempts
  • Device being used for login
  • Day and time of login attempt
  • Operating system
  • Source IP address
  • User role

This authentication method provides stronger security and improves the user experience by reducing the number of times users are asked to authenticate themselves, while still ensuring that high-risk access attempts are properly secured.

What to Look for in an MFA Solutions Provider?

The need for strong security which ensures the safety of your identity and data cannot be denied. But with a plethora of MFA service providers in the marketplace, how do you choose the best MFA service provider based on your use case? There are various requirements to be taken into consideration while choosing your solution provider but the most crucial criterion to choose a service provider is its ability to meet the current business requirements of your organization while providing room for future growth prospects. The following are the key considerations that are to be taken into account while choosing your MFA solutions provider:

  • End-user experience
  • Admin experience
  • Extensive Access
  • Comprehensive implementation

SecurePass Multi-Factor Authentication Solutions - Minimizing Risk, Increasing Assurance: How to Use SecurePass for MFA Security Solutions?

 

 

Why Choose eMudhra for the Best Multi-Factor Authentication (MFA) Solutions?

With regards to the future of multi-factor authentication, we're expecting MFA methods to constantly evolve, and our goal is to make identity verification easier for users and more secure for organizations. We at eMudhra provide you with a one-stop solution for all your MFA security solutions

eMudhra is a global trust provider with expertise in Identity and Access Management solution deployment. We provide FIDO-compliant strong Identity and access management solutions deployed widely across the private and public sectors with more than 15 modes of authentication, adaptive authentication as well as single sign-on, Lifecycle Management, Universal Directory, API Access Management services, and more! 

We understand your need for a hassle-free security solution. Our platform can be extended to allow single sign-on with centralized access management capabilities. If you have a large application stack that cuts across cloud and on-prem, our IAM solution can help reduce the complexity around user access and authentication through a centralized low-cost access management solution. We offer efficient deployment across all aspects of your environment, including your on-premises systems and applications, third-party hosted platforms, cloud services, and mobile apps, allowing you to turn on additional identity management capabilities with ease whenever needed.

Our trust services help build secure applications with reliable identities while ensuring the privacy of user data. Our trust service solutions include SSL certificates, IoT certificates, digital signature certificates, and PKI solutions.

To learn more about eMudhra's MFA Solutions, Contact us now!

Also Read:

  1. The Need for Adaptive Authentication Solution,
  2. SecurePass MFA - Addressing the Need for Strong Authentication
  3. SecurePass: Using Analytics Driven Intelligence to Power Adaptive or Risk-Based Authentication
  4. Moving beyond OTP and 2FA - SecurePass MFA

Frequently Asked Questions

1. What are the three main types of multi-factor authentication methods? 

The three main types of multi-factor authentication methods are: Knowledge-based factors, Possession-based factors, Inherence-based factors.

2. What is the best MFA solutions?

The best MFA solutions combine strong security with user convenience. Popular choices include: Authenticator apps, Hardware tokens, Biometrics.

3. What is the most common MFA?

The most common MFA method is using authentication apps like Google Authenticator or Microsoft Authenticator. These apps generate time-based one-time passwords (TOTP) that users enter alongside their password, providing a balance of security and convenience. They are widely supported and easy to set up on smartphones.

About the Author

eMudhra Limited

eMudhra Editorial represents the collective voice of eMudhra, providing expert insights on the latest trends in digital security, cryptographic identities, and digital transformation. Our team of industry specialists curates and delivers thought-provoking content aimed at helping businesses navigate the evolving landscape of cybersecurity and trust services with confidence.

Frequently Asked Questions

emCA is a component of the emCA system that validates and verifies the authenticity and integrity of emCA certificates.

Multi-Factor Authentication (MFA) is a security framework that goes beyond traditional password protection by requiring users to verify their identity through multiple independent factors. It ensures that access to sensitive systems or data is granted only after successfully validating a combination of

  1. Information only the user knows (e.g., passwords or PINs).
  2. Something the user owns (e.g., security tokens or mobile devices).
  3. Unique traits of the user (e.g., biometric fingerprints or facial recognition).

This layered approach makes it exponentially harder for unauthorized users to breach systems, even if one factor is compromised.

Evolving Threat Landscape: The U.S. faces increasingly sophisticated cyberattacks, including credential stuffing and social engineering. MFA significantly raises the bar for attackers, forcing them to overcome multiple barriers instead of just one.

Safeguarding Digital Transformation: As businesses adopt cloud services, remote work, and interconnected digital platforms, MFA acts as a digital gatekeeper, ensuring that only verified users can access critical resources.

Proactive Risk Management: Beyond compliance, MFA demonstrates a proactive stance toward security, shifting businesses from reactive measures after breaches to preventative practices.

Industry-Specific Needs: Different industries in the U.S., such as healthcare, finance, and government sectors, require elevated security standards. MFA supports this need by aligning with frameworks like Zero Trust Architecture and NIST 800-63 guidelines.

Customer Expectations: As data breaches become common headlines, customers prioritize companies investing in advanced security practices. MFA reinforces trust by showing a clear commitment to safeguarding their information.

Implementing MFA isn’t just about adding layers of security; it’s about integrating it seamlessly into workflows without compromising user convenience. Solutions like those offered by eMudhra blend robust security with an intuitive user experience, tailored to meet modern business demands in the U.S.

Multi-Factor Authentication (MFA) significantly enhances organizational security by requiring multiple layers of identity verification, ensuring that access to critical systems, data, or applications is tightly controlled. For organizations leveraging eMudhra’s solutions, MFA integrates seamlessly into workflows to provide an advanced, yet user-friendly, approach to cybersecurity. Here’s how MFA adds value:

Reduces Dependency on Passwords: MFA reduces reliance on passwords by introducing additional verification layers, such as biometrics or device-based authentication, ensuring that compromised credentials alone cannot grant access.
Strengthens Identity Verification: MFA ensures that only verified users—through possession of a token, biometrics, or device-based codes—can access sensitive systems. For instance, integrating MFA with eMudhra solutions like emSigner or emCA adds layers of security when signing documents or managing certificates.
Prevents Unauthorized Access: Even if an attacker gains access to one authentication factor (e.g., a password), MFA blocks access by requiring additional credentials. With eMudhra’s MFA-enabled platforms, this extra layer mitigates risks from phishing scams, social engineering, or insider threats.
Secures Remote Access: In an increasingly hybrid work environment, remote access to corporate systems is a necessity. MFA ensures that employees working from different locations, devices, or networks must verify their identity before accessing critical tools and data.
Streamlined Integration with eMudhra Solutions: eMudhra’s suite of solutions, including identity and access management (IAM) tools, allows businesses to incorporate MFA without disrupting user workflows. Biometric authentication, OTPs, and hardware tokens can be deployed easily across applications, securing both internal processes and external user interactions.
Compliance with Security Standards: Many industries, especially in regions like the USA, require adherence to regulations such as GDPR, CMMC, or PCI DSS. MFA integrated into eMudhra’s tools helps organizations meet these stringent compliance standards effortlessly.

For organizations using eMudhra’s solutions, MFA is more than just a security feature—it’s a strategic approach to protecting identities and digital assets. It builds trust, mitigates risks, and ensures seamless authentication without compromising user experience. Contact us to learn how MFA can elevate your organization’s security posture.

Businesses in the USA widely adopt Multi-Factor Authentication (MFA) to secure access to systems, applications, and sensitive data. The most common MFA methods include:

One-Time Passwords (OTPs):

  • Generated dynamically and sent via SMS, email, or authenticator apps.
  • Commonly used for quick, additional verification during login.

Biometric Authentication:

  • Leverages unique physical traits like fingerprints, facial recognition, or retina scans.
  • Highly secure and increasingly popular in industries like healthcare and finance.

Hardware Tokens:

  • Physical devices (e.g., USB keys or key fobs) generate time-sensitive codes or enable authentication when plugged into a device.
  • Used by organizations requiring offline or device-independent authentication.

Software-Based Tokens:

  • Mobile apps like Google Authenticator or Microsoft Authenticator generate time-based codes.
  • Convenient and cost-effective for both businesses and users.

Push Notifications:

  • Sends a login approval request to the user’s mobile device via an authentication app.
  • Allows users to verify login attempts with a single tap.

Smart Cards or Security Keys:

  • Physical cards or USB-based security keys (e.g., YubiKeys) store cryptographic credentials.
  • Often used in government or enterprise environments requiring advanced security.

Email Verification:

  • Sends a unique verification link or code to the user’s email address.
  • Acts as a secondary authentication method for systems with lower risk thresholds.

These methods enhance security by ensuring that even if one factor (e.g., a password) is compromised, attackers cannot access systems without additional verification. Businesses choose methods based on their security needs, user convenience, and compliance requirements.

Traditional MFA enhances security by requiring users to provide multiple forms of verification—such as passwords, tokens, or biometrics—each time they access a system, regardless of the context. This uniform approach applies the same authentication steps for every login attempt, which can sometimes lead to unnecessary friction for users in low-risk scenarios.

In contrast, Adaptive MFA, as offered by providers like eMudhra, introduces a dynamic, context-aware layer to the authentication process. It evaluates various factors during each login attempt, including:

  • User Location: Detecting logins from unusual or high-risk geographic areas.
  • Device Information: Identifying whether the device is recognized or new.
  • Time of Access: Considering whether the login attempt occurs during typical usage hours.
  • User Behavior Patterns: Analyzing deviations from normal user behavior.

By assessing these contextual elements, Adaptive MFA assigns a risk level to each authentication attempt. For low-risk scenarios, it may permit access with minimal authentication steps, enhancing user convenience. Conversely, in high-risk situations, it can enforce additional verification measures, such as requiring a one-time password or biometric confirmation, thereby strengthening security.

eMudhra's Adaptive MFA solution leverages advanced analytics and machine learning to fine-tune this process, ensuring that security measures are appropriately matched to the assessed risk without compromising user experience. This intelligent approach not only bolsters protection against unauthorized access but also reduces unnecessary authentication prompts, aligning security protocols with real-time risk assessments.

In summary, while traditional MFA applies a uniform authentication process for all users, Adaptive MFA offered by eMudhra provides a flexible, risk-based approach. This method enhances security by dynamically adjusting authentication requirements based on contextual risk factors, thereby offering a more seamless and secure user experience.

Small businesses in the USA are increasingly becoming targets for cybercriminals due to perceived weaker security measures. Implementing Multi-Factor Authentication (MFA) solutions from eMudhra can help small businesses protect their data, secure remote access, and build customer trust. Unlike traditional security methods, MFA from eMudhra adds an extra layer of protection by requiring multiple verification factors, such as passwords, biometrics, or device-based authentication.

eMudhra’s MFA solutions are particularly beneficial for small businesses because they are scalable and cost-effective. Whether you're protecting sensitive customer data, managing employee access, or securing online transactions, MFA ensures only authorized users can access critical systems. Small businesses often operate in industries like healthcare or retail, which must comply with regulations such as HIPAA or PCI DSS. eMudhra’s MFA solutions align with these standards, helping businesses stay compliant while safeguarding against costly breaches.

Additionally, eMudhra’s user-friendly interface and integration capabilities allow small businesses to deploy MFA without disrupting operations. With rising threats like phishing and ransomware, eMudhra's adaptive MFA goes beyond traditional methods by dynamically adjusting authentication based on risk levels, ensuring a seamless yet secure experience for users.

In short, small businesses in the USA can benefit greatly from implementing eMudhra’s MFA solutions, enhancing security, compliance, and customer trust—all without breaking the bank.

MFA is one of the most effective defenses against phishing attacks and credential theft, which are rampant in the USA. Traditional passwords are often vulnerable to being stolen through phishing emails or malicious websites. MFA mitigates this risk by adding additional verification steps that attackers cannot easily bypass.
Here’s how it works: even if a hacker obtains your password, they still need the second authentication factor—such as a one-time password (OTP), biometric verification, or a hardware token—to gain access. eMudhra’s MFA solutions provide advanced protection by combining robust encryption with adaptive authentication. For example, if an employee logs in from an unusual location or device, the system prompts additional verification, blocking suspicious attempts.
Phishing attacks often trick users into revealing passwords, but MFA ensures that a compromised password alone isn’t enough for unauthorized access. With phishing becoming more sophisticated, robust MFA solutions provide businesses in the USA a reliable way to protect sensitive data, prevent breaches, and maintain trust in a digital-first world.

While MFA isn’t universally mandatory for all businesses in the USA, it is a requirement under several industry-specific regulations and standards. For example:

  • HIPAA mandates MFA to safeguard electronic protected health information (ePHI).
  • PCI DSS requires MFA for accessing payment systems.
  • CMMC for defense contractors includes MFA as part of its cybersecurity framework.

Even outside regulatory mandates, implementing MFA is increasingly considered a best practice to enhance security and protect against data breaches.

eMudhra helps businesses in the USA navigate compliance by offering MFA solutions tailored to meet specific regulatory requirements. For industries like healthcare, finance, and government, eMudhra ensures that its MFA systems align with frameworks such as NIST guidelines and GDPR. Additionally, eMudhra’s adaptive MFA can dynamically adjust security levels based on risk, making compliance easier to achieve without sacrificing user experience.

By partnering with eMudhra, businesses not only address compliance mandates but also strengthen their overall cybersecurity posture.

The cost of implementing eMudhra’s MFA solutions for businesses in the USA depends on factors such as the number of users, the desired authentication methods, and integration requirements. However, eMudhra offers flexible pricing models designed to accommodate businesses of all sizes, from small startups to large enterprises.

For small businesses, eMudhra provides scalable MFA solutions that minimize upfront costs while delivering enterprise-grade security. Subscription-based pricing ensures affordability, allowing businesses to pay only for the services they need. For larger organizations, eMudhra offers comprehensive plans with advanced features such as adaptive MFA, biometric authentication, and integration with legacy systems.

One of the key advantages of choosing eMudhra is the cost-efficiency of its solutions. By preventing potential data breaches—which can cost millions in fines, lawsuits, and reputational damage—the investment in MFA quickly pays for itself. Moreover, eMudhra’s support for easy integration ensures that businesses save on IT overhead and operational disruptions