ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 56

Which is the BEST deployment system for malicious code protection?

Answer options

• A. Network segmentation
• B. IACS protocol converters
• C. Application whitelisting (AWL)
• D. Zones and conduits

Correct answer: C

Explanation

Application whitelisting (AWL) is the most effective method for preventing malicious code execution, as it allows only approved applications to run. Other options like network segmentation and zones and conduits provide security measures but do not specifically prevent the execution of malicious software. IACS protocol converters are not directly related to code protection.