Which of the following is the greatest security concern regarding ICS?
A . The involved systems are generally hard to identify.
B. The systems are configured for automatic updates, leading to device failure.
C. The systems are oftentimes air gapped, leading to fileless malware attacks.
D. Issues on the systems cannot be reversed without rebuilding the systems.
Answer: D
Explanation:
Industrial control systems (ICS) are systems that monitor and control physical processes, such as power generation, water treatment, manufacturing, and transportation. ICS are often critical for public safety and national security, and therefore a prime target for cyberattacks. One of the greatest security concerns regarding ICS is that issues on the systems cannot be reversed without rebuilding the systems. This means that any damage or disruption caused by an attack can have long-lasting and catastrophic consequences for the physical infrastructure and human lives. The other options are not true or not specific to ICS. References: CompTIA Cybersecurity Analyst (CySA+) Certification Exam Objectives (CS0-002), page 13; https://www.us-cert.gov/ics/What-are-Industrial-Control-Systems
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