What is two-factor authentication (2FA)?

What is two-factor authentication (2FA)?

• A. A method for data encryption
• B. A security process that requires two separate forms of identification to access an account
• C. A form of network security analysis
• D. An application to manage user access

Answer: (B)

Two-factor authentication (2FA) is a security process designed to enhance the security of account access by requiring two different forms of identification. This method adds an additional layer of protection beyond just a password, which can sometimes be easily compromised. In essence, 2FA typically involves something the user knows (like a password) and something the user possesses (like a smartphone to receive a text message or an authentication app that generates a time-based code). By requiring both elements, 2FA significantly reduces the risk of unauthorized access to sensitive accounts even if one factor, such as the password, becomes known to an attacker. This dual verification process is key in mitigating various types of attacks, such as phishing or brute force attacks, thereby strengthening overall security. The other options do not accurately describe 2FA. Data encryption pertains to encoding information for confidentiality, network security analysis involves evaluating network vulnerabilities and behaviors, and an application for managing user access does not inherently incorporate the dual verification aspect that 2FA emphasizes.

Two-factor authentication (2FA) is a security process designed to enhance the security of account access by requiring two different forms of identification. This method adds an additional layer of protection beyond just a password, which can sometimes be easily compromised.

In essence, 2FA typically involves something the user knows (like a password) and something the user possesses (like a smartphone to receive a text message or an authentication app that generates a time-based code). By requiring both elements, 2FA significantly reduces the risk of unauthorized access to sensitive accounts even if one factor, such as the password, becomes known to an attacker. This dual verification process is key in mitigating various types of attacks, such as phishing or brute force attacks, thereby strengthening overall security.

The other options do not accurately describe 2FA. Data encryption pertains to encoding information for confidentiality, network security analysis involves evaluating network vulnerabilities and behaviors, and an application for managing user access does not inherently incorporate the dual verification aspect that 2FA emphasizes.