type: incident · created: 2026-09-08 · updated: 2026-09-08 · tags: [incident, cyberattack, healthcare, system-disruption] · confidence: high · affected_sectors: [healthcare] · au_impact: false
Luminis Health Working to Restore Systems After Cyberattack
Luminis Health, a nonprofit health system in Maryland that includes Anne Arundel Medical Center and Doctors Community Medical Center, announced on 4 September 2026 that it suffered a cyberattack affecting both hospitals.
| Attribute | Detail |
|---|---|
| Date | Announced 4 September 2026 |
| Impact | Appointment rescheduling; phone system and MyChart patient portal offline |
| Status | Investigation / system restoration ongoing |
| Breach determination | Not yet determined at reporting |
| Source | HIPAA Journal — Tier 2/4 |
The facilities still care for patients although some appointments are rescheduled. No ransomware or data-extortion group had claimed responsibility at publication; at this stage the event is a system-disruption incident pending a breach determination.