What is the key benefit of multi-factor authentication compared to a password alone?

Multi-factor authentication (MFA) significantly enhances security by requiring two or more verification methods to gain access to an account or system. This means that even if a password is compromised, an attacker would still need additional information or access to a second factor—such as a text message code, authentication app, or biometric verification—to successfully breach an account.

This layered approach to security makes it much more difficult for unauthorized users to gain access, as they cannot rely solely on a single password for entry. Since authentication is based on multiple factors, the likelihood of an account being compromised decreases substantially, providing a stronger defense against various types of attacks such as phishing and password guessing.

In contrast, the other options highlight misunderstandings about MFA. For instance, while MFA may reduce reliance on overly complex passwords, its primary intent is to add additional layers of security rather than simply simplifying password management. Furthermore, MFA is designed to be secure and not easily bypassed, countering any notion of easy attacks, and it is effective around the clock, regardless of business hours.