# University of Mississippi Medical Center

Type: Company

Source: Cyber Intelligence Brief — https://getcyberbrief.com/entity/university-of-mississippi-medical-center
Canonical HTML page: https://getcyberbrief.com/entity/university-of-mississippi-medical-center

## Timeline

- **2026-02-24**: Extended Disruption — Clinics remain closed for a second day as forensic teams work to assess the scope of the encryption.
- **2026-02-23**: Statewide Shutdown — UMMC announces the closure of 36 clinics and the cancellation of all elective procedures to contain the threat.
- **2026-02-22**: Initial Breach Detection — UMMC IT staff identify unauthorized activity and ransomware deployment on the network.
- **2026-02-20**: Public Disclosure — UMMC confirms the incident is a ransomware attack and begins forensic investigation.
- **2026-02-19**: Attack Detected — UMMC IT staff identify unauthorized activity and begin isolating systems.
- **2026-02-19**: Statewide Closure — All UMMC-affiliated clinics are ordered to close immediately to contain the threat.

## Recent coverage (3 stories)

### UMMC Ransomware Attack Forces Statewide Clinic Closures and Surgery Delays
2026-02-23 16:26:15 · Sentiment: Strongly negative · Impact: 8/10 · Sources: 2

The University of Mississippi Medical Center has shuttered approximately 36 clinics and canceled elective procedures following a major ransomware attack. The disruption, entering its second day, highlights the critical vulnerability of regional healthcare infrastructure to digital extortion.
Full story: https://getcyberbrief.com/story/ummc-ransomware-attack-mississippi-clinics-closed

### UMMC Shuts Down All Clinics Following Major Ransomware Attack
2026-02-21 07:55:51 · Sentiment: Strongly negative · Impact: 8/10 · Sources: 2

The University of Mississippi Medical Center (UMMC) has suspended operations across its entire clinic network following a disruptive ransomware attack. The shutdown highlights the critical vulnerability of academic medical centers and the extreme measures required to contain modern cyber threats.
Full story: https://getcyberbrief.com/story/ummc-ransomware-attack-clinic-shutdown

### UMMC Shuts Down Statewide Clinics Following Major Ransomware Attack
2026-02-20 12:22:01 · Sentiment: Strongly negative · Impact: 8/10 · Sources: 2

The University of Mississippi Medical Center (UMMC) has suspended operations across its entire network of clinics following a disruptive ransomware attack. The incident has forced the state's only academic medical center to transition to manual processes and divert non-emergency patients, highlighting the persistent vulnerability of critical healthcare infrastructure.
Full story: https://getcyberbrief.com/story/ummc-mississippi-clinics-ransomware-shutdown

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