UMMC Restores Systems After Cyberattack

Mississippi's largest hospital system resumes normal operations and appointments this week.

Published on Feb. 27, 2026

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The University of Mississippi Medical Center (UMMC), the state's largest hospital system, is recovering after a ransomware attack that led to the closure of all UMMC clinics and impacted the hospital's computer systems, including electronic health records, phone systems, and its website. UMMC says it has made progress in restoring systems and will resume normal operations and scheduled appointments on Monday.

Why it matters

Cyberattacks on healthcare systems can have serious consequences, disrupting critical patient care and access to medical records. The UMMC attack highlights the ongoing threat of ransomware and the importance of robust cybersecurity measures in the healthcare industry.

The details

The ransomware attack occurred on February 19, leading UMMC to close all of its clinics. The hospital's computers, including electronic health records, phone systems, and its website, were impacted. UMMC says it has now made progress in restoring its systems and will resume normal operations and scheduled appointments on Monday, February 27.

  • The ransomware attack occurred on February 19, 2026.
  • UMMC's website returned on Friday, February 24, 2026.
  • UMMC will resume normal operations and scheduled appointments on Monday, February 27, 2026.

The players

University of Mississippi Medical Center (UMMC)

The state's largest hospital system, which was the target of a ransomware attack that disrupted its operations.

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What’s next

UMMC will continue to monitor its systems and work to fully restore all functionality in the coming days and weeks.

The takeaway

The UMMC cyberattack underscores the ongoing threat of ransomware to the healthcare industry and the importance of robust cybersecurity measures to protect critical patient care and medical records.