What are add-on security mechanisms primarily used for?

Add-on security mechanisms are primarily implemented to enhance the protection level of a system. These mechanisms are designed to provide additional layers of security on top of existing security measures, making it harder for unauthorized users to gain access or compromise the integrity of the system. By integrating supplementary tools or functionalities—such as encryption, multi-factor authentication, or intrusion detection systems—organizations can better defend against a wider range of threats and vulnerabilities.

While other options discuss potential benefits of security measures, they don't align with the primary purpose of add-on security mechanisms. For instance, while reducing costs might be a concern in security budgeting, the typical goal of implementing add-on mechanisms is to bolster defenses rather than save money. Similarly, creating complicated protocols is not the fundamental focus; security mechanisms should ideally strive for effectiveness without excessive complexity. Lastly, simplifying system access for users can be a goal, but typically, the introduction of add-on mechanisms increases security rigor, which may sometimes complicate access in exchange for improved security vigilance.