Which of the following best defines add-on security?
Which of the following best defines add-on security?
Add-on security refers to protection mechanisms that are implemented after an information system has already become operational. This means that these security measures are added retroactively to enhance the system's security, as opposed to being integrated from the beginning. Therefore, the correct definition of add-on security is the implementation of additional protective measures post-deployment.
A. Physical security complementing logical security measures. Add-on security typically refers to physical security measures that complement or supplement logical security measures in an information system. While both physical and logical security are essential for overall security, add-on security specifically focuses on additional physical safeguards, such as biometric access controls, surveillance cameras, locked server rooms, and secure hardware tokens, to enhance the security of an information system. These physical measures are added to strengthen the overall security posture of the system beyond the purely logical or software-based security measures.
D, This is not in reference to physical security.