Resilience in the Face of Disruption: Viewpoint on the CrowdStrike Incident in July 2024.

Unlabelled: In an era where health care is increasingly dependent on digital infrastructure, the resilience of health IT systems has become a cornerstone of patient safety and operational continuity. As cyber threats grow in frequency and sophistication, health care organizations have turned to advanced cybersecurity tools to safeguard their systems. Yet even the most robust defenses can falter. On July 19, 2024, a routine update from a widely used cybersecurity platform triggered a widespread IT disruption. A flawed sensor configuration led to 8647 "blue screen of death" (BSOD) events, with 729 devices requiring manual remediation. What unfolded was not just a technical crisis but a test of organizational agility, collaboration, and resilience. This viewpoint traces the response to that disruption, highlighting the pivotal role of clinical informaticists and the coordinated efforts that enabled a rapid recovery. From the formation of an incident response team to the triage and mitigation of impacted systems, the response was swift and strategic. Clinical informaticists emerged as key players, bridging the gap between technical teams and frontline care providers. They identified workflow disruptions, facilitated communication, and ensured that patient care remained as uninterrupted as possible. Despite the scale of the outage, operations continued with minimal disruption-thanks to early recognition, decisive action, and cross-disciplinary collaboration. This incident underscored the importance of a well-practiced response plan, clear communication channels, and the integration of clinical expertise in technical recovery efforts. As we reflect on this event, several lessons emerge: the need for continuous refinement of incident response strategies, the value of regular training exercises, and the critical role of clinical informatics in navigating digital crises. This paper calls for a renewed commitment to building resilient health IT ecosystems-ones that can withstand disruption and continue to support the delivery of safe, effective care.