Final answer:
Additional layer of security, known as two-factor authentication, helps safeguard information by adding an extra step to verify user identity. Correct answer is (A).
Step-by-step explanation:
When an organization implements an SMS-based password authentication protocol as an additional layer to the username/password combination requirement, it is addressing the aspect of confidentiality in information security. Confidentiality ensures that information is accessible only to those authorized to have access.
The utilization of a two-factor authentication protocol, where the second factor is an SMS code, adds an extra step for verifying the identity of the user trying to gain access, thereby increasing the security of sensitive information.
Two-factor authentication is a form of security measure that combines something the user knows (their password) with something the user has (a device that can receive an SMS), making it more difficult for unauthorized individuals to access the system.
This additional authentication step is important for both individuals and organizations, as it helps prevent unauthorized access, thereby protecting against potential breaches and ensuring data integrity. Educating users on the importance of security measures such as two-factor authentication and how to create stronger passwords is also crucial in the fight against digital scams and cyber threats.