University of Mississippi Medical Center closes all clinics in wake of cyberattack

University of Mississippi Medical Center said a cybersecurity attack knocked multiple IT systems offline and prompted the Jackson-based system to close clinics and cancel outpatient care. According to WLBT, staff described an early-morning cyberattack that compromised all IT systems, with some staff sent home, and that the medical records system was down. All 35 UMMC clinics across the state are currently closed.

The incident focused on the Epic electronic medical records platform, which experienced disruption as a result of the attack. The posting on DataBreaches[.]Net, dated 19 February 2026, reports that the event led to widespread service disruption and clinic closures across the network.