UMMC Ransomware Attack Halts Services Across Mississippi Clinics

Last Updated: March 3, 2026By

UMMC Services Suspended After Cyberattack

The University of Mississippi Medical Center (UMMC) is navigating the fallout from a recent ransomware attack that has temporarily shut down its clinics statewide. Thankfully, emergency departments in Jackson, Grenada, and areas like Madison and Holmes are still operational, ensuring critical care is available.

All scheduled clinic appointments and non-emergency procedures are canceled until at least Friday. UMMC remains hopeful about resuming normal operations by Monday, pending further recovery updates.

Insight from Cybersecurity Experts

Cynthia Kaiser, a former deputy director of the FBI’s Cyber Division and now a senior VP at Halcyon, sheds light on the situation. She underscores the challenges in the recovery process, noting that similar attacks have previously led to weeks of downtime.

“These situations often delay operations longer than a few days,” Kaiser said. “This impacts patient care, with studies highlighting that ransomware attacks can lead to severe, even life-threatening outcomes.”

Kaiser stresses that rushing to restore systems without proper security could result in further vulnerabilities for UMMC.

Proactive Measures and Patient Assistance

UMMC has faced breaches before, like the incident in 2013 affecting patient records. Kaiser advocates for robust cybersecurity, urging hospitals to seek government support to enhance defenses.

She advises implementing three key strategies: maintaining basic cybersecurity hygiene, using multiple security layers, and having strong data backup and recovery systems.

For urgent needs, UMMC provides an automated triage line at (601) 815-0000 to assist patients, particularly those requiring immediate prescriptions.

Stay informed by keeping back here for the latest updates on UMMC’s efforts and status.

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