ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 2

Which of the following is a cause for the increase in attacks on IACS?

Answer options

• A. Use of proprietary communications protocols
• B. The move away from commercial off the shelf (COTS) systems, protocols, and networks
• C. Knowledge of exploits and tools readily available on the Internet
• D. Fewer personnel with system knowledge having access to IACS

Correct answer: C

Explanation

The correct answer is C because the widespread availability of knowledge regarding exploits and hacking tools on the Internet makes it easier for attackers to target IACS. Options A, B, and D do not directly relate to the accessibility of attack methods, which is a key factor in the increase of attacks.