Multifactor authentication (MFA) is a security measure that requires two or more proofs of identity to grant access to network resources. These proofs can be something the user knows (such as a password or a PIN), something the user has (such as a token or a card), or something the user is (such as a fingerprint or a face scan). The benefit of using MFA is that it adds an extra layer of protection against unauthorized access, especially if the first factor (such as a password) is compromised or stolen. By requiring a second validation of identity, MFA reduces the risk of data breaches and identity theft. MFA can also help comply with regulatory and industry standards that mandate strong authentication for sensitive data and systems. References := Some possible references are:
* Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 1: Security Concepts, Lesson 1.3: Identity and Access Management
* Multi-factor authentication best practices & strategy, NordLayer Blog
* How to implement Multi-Factor Authentication (MFA), Microsoft Security Blog
* Multi-factor authentication, Cyber.gov.au
* What is Multi-Factor Authentication?, IBM