What defines a logical security control?

• A. A physical barrier to unauthorized access
• B. A software-based control mechanism
• C. A financial audit tool
• D. A user training program

Answer: (B)

A logical security control is primarily concerned with protecting electronic information and systems through software-based mechanisms rather than physical barriers or organizational processes. These controls manage access to sensitive data and resources, ensuring that only authorized users can access certain systems or information. Examples include firewalls, encryption technologies, access controls, and authentication systems that help maintain the integrity and confidentiality of data in a digital environment.

While physical barriers, financial audits, and training programs are important aspects of an overall security strategy, they fall under different categories. Physical barriers pertain to protecting buildings and infrastructure from unauthorized access, while financial audit tools and user training programs aim to bolster compliance and awareness rather than directly securing electronic information. Therefore, the choice that accurately captures the essence of logical security control is the software-based control mechanism.