Healthcare IT environments face challenges due to legacy protocols, complex third-party integrations, and rapid cloud adoption, leading to unintended exposure of critical systems like DICOM servers to the internet. This exposes healthcare organizations to ransomware attacks as seen in 2025 when over 30 imaging systems were found externally reachable. To mitigate risks, continuous external visibility is crucial alongside periodic reviews of firewall rules, vendor configurations, and newly exposed services following infrastructure changes. Ensuring that DICOM services operate within intended network boundaries helps reduce risk and aligns with growing regulatory scrutiny on healthcare cybersecurity.
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