University Of Mississippi Medical Center — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
29
occurrences
First Seen
February 19, 2026
Last Seen
July 16, 2026

University Of Mississippi Medical Center is a organization tracked across 8 threat clusters and 29 intelligence report mentions on ThreatCluster. First observed February 19, 2026; most recent activity July 16, 2026.

Related Threat Clusters

  • Ransomware Attack Disrupts University of Mississippi Medical Center Operations

    The University of Mississippi Medical Center (UMMC) experienced a ransomware attack that compromised its IT systems, leading to the closure of clinics statewide. UMMC officials confirmed the incident occurred on…

    76 articles · Updated February 19, 2026
  • Chronus Group Breach Exposes 36 Million Mexican Citizens' Data

    In January 2026, the Chronus Group executed a significant data breach against the Mexican government, compromising 2.3 terabytes of sensitive data from at least 25 agencies. The breach exposed personal information of up…

    2 articles · Updated May 28, 2026
  • HHS Enhances Cybersecurity Toolkit for Healthcare Facilities

    The Department of Health and Human Services (HHS) has updated the Risk Identification and Site Criticality (RISC) 2.0 Toolkit to assist healthcare organizations in assessing their cybersecurity risks. This update…

    6 articles · Updated March 6, 2026
  • University of Mississippi Medical Center Reopens After Cyberattack

    The University of Mississippi Medical Center is set to reopen at full capacity on February 28, 2026, following a cyberattack that occurred on February 19, 2026. The FBI and Department of Homeland Security are…

    2 articles · Updated February 28, 2026
  • UMMC Cyberattack Investigation with FBI Assistance

    The University of Mississippi Medical Center (UMMC) in Jackson, MS, is currently investigating a cyberattack that has affected its operations. UMMC Vice Chancellor LouAnn Woodward confirmed that the FBI is assisting in…

    5 articles · Updated February 19, 2026
  • Cyberattack Disrupts Operations at Polish Hospital, Forces Return to Paper Systems

    The Independent Public Regional Hospital in Szczecin, Poland, was forced to revert to a paper-based workflow following a cyberattack that occurred on March 7-8, 2026. The attack encrypted parts of the hospital's IT…

    2 articles · Updated March 10, 2026
  • UMMC Restores Phone Lines After Ransomware Attack

    The University of Mississippi Medical Center (UMMC) has restored its phone lines following a ransomware attack that disrupted operations. The cyberattack affected multiple systems, leading to significant operational…

    2 articles · Updated March 2, 2026
  • PromptSpy: First Android Malware Utilizing Generative AI Discovered

    ESET researchers have identified PromptSpy, the first Android malware to incorporate generative AI, specifically Google’s Gemini, in its execution flow. This malware utilizes AI to manipulate the user interface and…

    39 articles · Updated February 19, 2026

Recent Intelligence Reports

  • Cyberattacks now shape both war and everyday life — www.csis.org · July 16, 2026
  • Cyberattack Forces Polish Hospital Revert to Paper — Thecyberexpress · March 10, 2026
  • HHS adds cybersecurity guidance to healthcare sector self — Cybersecuritydive · March 6, 2026
  • UMMC restores phone lines after ransomware attack — Supertalk.Fm · March 2, 2026
  • UMMC phones working after cyber attack in Mississippi - The Clarion — Clarionledger · March 2, 2026
  • University of Mississippi Medical Center to open at full capacity Monday following cyberattack — Supertalk.Fm · February 28, 2026
  • University of Mississippi Medical Center Clinics Reopening Statewide Monday, 11 Days ... — Mississippifreepress · February 28, 2026
  • Mississippi hospital system closes all clinics after ransomware attack — Apnews · February 20, 2026

CVSS v3.1 Breakdown