Maryland Health System Investigates Cyberattack as Patient Systems Go Offline

Industry Pulse News Desk · 2026-09-04

Luminis Health has engaged cybersecurity experts and legal counsel following a digital security incident affecting operations at two Maryland hospitals.

Luminis Health is investigating a cyberattack that has disrupted digital systems and forced certain patient-facing services offline across its hospital network in Maryland. The health system confirmed that it initiated incident response protocols after detecting unauthorized activity on its information technology network.

In response to the disruption, officials at the health system hired third-party forensic experts and legal counsel to assess the scope of the breach and assist with remediation efforts. System administrators isolated affected environments to prevent further spread of the intrusion.

The health system operates major medical centers in Annapolis and Lanham, Maryland. While emergency departments and critical care units remain operational, some clinical and administrative platforms have experienced downtime, prompting clinical staff to transition to manual backup procedures to maintain patient care.

Luminis Health has not disclosed the precise nature of the attack, nor has it confirmed whether sensitive patient or employee data was compromised during the incident. Relevant state and federal authorities have been notified as the internal investigation continues.

A timeline for the full restoration of affected digital services has not been established. Health system representatives stated that affected systems will remain offline until security consultants confirm they can be safely reconnected to the primary network.