What is the purpose of two-factor authentication?

The purpose of two-factor authentication (2FA) is to provide an extra layer of security when accessing sensitive information or systems. By requiring two separate forms of verification, 2FA enhances the security of user accounts beyond just a username and password. The first factor is usually something the user knows, such as a password, while the second factor is something the user has, like a smartphone app that generates a time-sensitive code or a physical hardware token.

Implementing 2FA significantly reduces the likelihood of unauthorized access, as an attacker would need both factors to successfully log in. This added layer is critical in protecting against various cybersecurity threats, such as phishing attacks, where credentials may be compromised without the second verification method.

Other options may touch on aspects related to user experience or remote access but do not capture the main purpose of 2FA. The emphasis here is on enhancing security, making it a key strategy for safeguarding user data and maintaining the integrity of systems against breaches.