Certified Ethical Hacker (CEH v12) — Question 154

As a cybersecurity analyst at TechSafe Inc., you are working on a project to improve the security of a smart home system. This IoT-enabled system controls various aspects of the home, from heating and lighting to security cameras and door locks. Your client wants to ensure that even if one device is compromised, the rest of the system remains secure. Which of the following strategies would be most effective for this purpose?

Answer options

• A. Recommend using a strong password for the smart home system's main control panel.
• B. Suggest implementing two-factor authentication for the smart home system's mobile app.
• C. Propose frequent system resets to clear any potential malware.
• D. Advise using a dedicated network for the smart home system, separate from the home's main Wi-Fi network.

Correct answer: D

Explanation

Using a dedicated network for the smart home system is the most effective strategy because it isolates the IoT devices from the main network, reducing the risk of a compromised device affecting the entire system. While strong passwords and two-factor authentication enhance security, they do not provide the same level of network isolation. Frequent system resets can help remove malware but do not prevent initial compromises.