On March 20, 2025, the American Hospital Association (AHA) and the Health-ISAC issued an alert to the health care sector warning of a social media post that posed a potential threat “related to the active planning of a coordinated, multi-city terrorist attack on hospitals in the coming weeks.” The post targets “mid-tier cities with low-security facilities.”

The alert recommends “that teams review security and emergency management plans and heighten staff awareness of the threat,” including physical security protocols and practices, such as “having a publicly visible security presence.”

The alert, updated on March 26, 2025, indicates that the FBI has not identified a “specific credible threat targeted against hospitals in any U.S. city.” Nonetheless, the threat is concerning, and the recommendations of the AHA and Health-ISAC are worth noting.