Kentwood Public Schools
April 30, 2026
•[ malware, insider threat, network disruption ]
A student deployed malicious software that interfered with Kentwood Public Schools network, causing districtwide WiFi connectivity loss, which was later isolated and restored with help from external experts.
Goodwill of Greater Grand Rapids
March 27, 2026
•[ ransomware, extortion, data theft ]
Goodwill of Greater Grand Rapids said an attack disrupted part of its network environment and affected store operations, forcing locations across its West Michigan service area to operate on a cash-only basis, while outside reporting tied the incident to an Interlock ransomware extortion claim alleging theft of 80 GB of data.
Aroostook Mental Health Center
March 24, 2026
•[ ransomware, data leak, network disruption ]
Aroostook Mental Health Center said a recent network disruption affected some business operations and temporarily interrupted connectivity, while outside reporting linked the incident to the Qilin ransomware group and a related leak-site extortion claim.
CareCloud, Inc.
March 16, 2026
•[ unauthorized access, network disruption, electronic health records ]
CareCloud experienced unauthorized access and a temporary network disruption on March 16, 2026 that partially affected functionality and data access to one of its six electronic health record environments for approximately eight hours.
Livingston HealthCare
February 13, 2026
•[ cybersecurity incident, network disruption, system outage ]
Livingston HealthCare reported a potential cybersecurity incident that disrupted phone systems and network services and led the hospital to take certain systems offline while recovery continued.
EBR Systems
February 13, 2026
•[ network disruption, unauthorized access, patient health data ]
EBR Systems experienced a network disruption around February 13, 2026 and later determined that certain information stored on its network, including a limited amount of patient health data, was subject to unauthorized access; the incident was contained and did not cause material business disruption.
Goodwin University
December 4, 2025
•[ network disruption, unauthorized access, data breach ]
Goodwin University experienced a network disruption on December 4, 2025 and secured its network environment. Qilin claimed responsibility on December 28, 2025, and the investigation later determined that certain files may have been acquired without authorization. DataBreach indexed 209,218 rows tied to the breach, while outside reporting says Goodwin later confirmed 56,156 impacted individuals. Public sources did not confirm encryption or the precise disruption mechanism.
Manassas City Public Schools
November 9, 2025
•[ cybersecurity incident, network disruption ]
Manassas City Public Schools in Virginia announced that all schools would be closed on Monday, November 10, 2025, after a cybersecurity incident disrupted phone and network systems across the district. According to statements from Superintendent Kevin Newman reported by WJLA and FOX 5, the breach was discovered over the weekend, more than 7,000 families were notified, and the district experienced significant connectivity and telephone outages while physical school security remained unaffected. Schools were already scheduled to be closed Tuesday for a holiday, and officials used the extended break to give IT staff time to investigate and restore systems so normal operations could resume on Wednesday.
Pinnacle Holdings
November 25, 2024
•[ network disruption, protected health information, data leak ]
Pinnacle Holdings reported a November 25, 2024 network disruption that affected certain IT systems and exposed protected health information belonging to about 19,000 Corewell Health patients.
