A healthcare organization relies on specialized equipment that operates on a legacy system which cannot be patched due to vendor abandonment. To maintain the highest level of security, what should be the organization's FIRST step in mitigating the risks associated with the inability to patch this system?
Deploy an additional firewall specifically for the legacy system
Applying antivirus software updates more frequently
The correct answer is 'Network segmentation'. This practice would isolate the legacy system from the rest of the network, reducing the potential impact of a vulnerability being exploited. While other options like intrusion detection systems and replacement could also be considered, they do not immediately address the risk of the legacy system being compromised. Network segmentation is a straightforward mitigation step that can be applied without requiring the removal of critical, yet non-patchable, equipment.
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What is network segmentation and how does it work?
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Why is it important to isolate legacy systems in a healthcare environment?
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What are some other security measures that can complement network segmentation?