HealthsystemCIO.com July 24, 2025
A third of U.S. hospitals experienced digital service disruption after July 2024 software failure.
When a faulty software update from CrowdStrike triggered a global IT meltdown on July 19, 2024, more than 750 U.S. hospitals experienced measurable disruptions—many of them affecting direct patient care, according to a study led by Jeff Tully, MD, Co-Director of the UC San Diego Center for Healthcare Cybersecurity.
The study found that 34% of 2,232 hospitals with available data experienced service outages coinciding with the update. Among nearly 1,100 affected digital services, 22% were directly tied to patient care, including access to EHRs, laboratory systems, imaging platforms, and patient portals.
“This wasn’t just a technical hiccup—it was a significant disruption to the systems our hospitals...
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