What is an example of a strong authentication method?

Multi-factor authentication (MFA) is considered a strong authentication method because it requires users to provide two or more verification factors to gain access to a resource. This typically combines something the user knows (like a password), something the user has (like a smartphone or security token), and sometimes something the user is (biometric verification, such as a fingerprint).

By requiring multiple forms of identification, MFA significantly reduces the risk of unauthorized access. Even if one factor, such as a password, is compromised, an attacker would still need to bypass additional verification factors to gain access, which increases overall security. This layered approach to security is a fundamental principle in protecting sensitive information and systems, making MFA a robust choice for organizations that prioritize security in their authentication processes.