Protecting IoMT Devices from Ransomware via Segmentation

312-50v12 By islever Editorial Last updated

IoT Hacking

Short answer

C Use network segmentation to isolate IoMT devices from the main network.

Question

You are a cybersecurity consultant for a healthcare organization that utilizes Internet of Medical Things (IoMT) devices, such as connected insulin pumps and heart rate monitors, to provide improved patientcare. Recently, the organization has been targeted by ransomware attacks. While the IT infrastructure was unaffected due to robust security measures, they are worried that the IoMT devices could be potential entry points for future attacks. What would be your main recommendation to protect these devices from such threats?
  1. Disable all wireless connectivity on IoMT devices.
  2. Regularly change the IP addresses of all IoMT devices.
  3. Use network segmentation to isolate IoMT devices from the main network. Correct Answer
  4. Implement multi-factor authentication for all IoMT devices.

Key Takeaways

This question tests IoMT security strategies, with the common trap being to implement unfeasible controls like disabling wireless connectivity entirely.

Learn why network segmentation is the primary defense for Internet of Medical Things (IoMT) devices against ransomware, as identified in this 312-50v12 exam question.

Common mistake: Candidates often select disabling wireless connectivity because it seems secure, but IoMT devices require wireless functionality for patient care, making this option impractical.

Expert Analysis

Why the Answer Is Correct

Network segmentation is the most effective recommendation for protecting IoMT devices. By isolating these devices on a separate VLAN or subnet, you create a barrier that prevents lateral movement. If an IoMT device is compromised by ransomware, the attacker cannot easily spread to critical IT infrastructure or other parts of the network.

Why the Other Options Are Wrong

Disabling wireless connectivity (Option A) is incorrect because many IoMT devices rely on wireless communication for their core functionality; turning them off would disrupt patient care. Regularly changing IP addresses (Option B) is not a viable security control for medical devices, which require stable connectivity for monitoring and alerts. Multi-factor authentication (Option D), while good practice, does not prevent the initial infection or lateral movement as effectively as isolation.

Community Comment Notes

The community consensus strongly supports network segmentation. As user insaniunt noted, this approach provides a "comprehensive and flexible solution" to protect devices without disrupting their essential functions. The unanimous vote distribution reflects the clear best practice in healthcare IoT security.

Exam Strategy

When dealing with legacy or specialized devices like IoMT, always look for answers that balance security with operational continuity. Segmentation is almost always the correct answer when you need to isolate vulnerable assets from the core network.

Frequently Asked Questions

Why can't we just disable Wi-Fi on IoMT devices?

Many IoMT devices are designed for mobility and remote monitoring, requiring wireless connectivity. Disabling it would hinder patient care delivery.

Is MFA not enough to stop ransomware on IoMT?

MFA helps prevent unauthorized access, but if a device is already infected or has weak built-in auth, it doesn't stop lateral movement. Segmentation limits the blast radius.

More 312-50v12 FAQ →

Community Votes

C
100%

100% of anonymous learners picked answer C. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 3 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 3

  1. insaniunt 👍 3 Answered C
    C. Use network segmentation to isolate IoMT devices from the main network. This option can provide a comprehensive and flexible solution to protect IoMT devices from ransomware and other threats.
  2. [Removed] 👍 1
    Could someone please validate this information
  3. cloudgangster 👍 1 Answered C
    C i think.

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