Middlesex Sheriff's Office
January 1, 2025
•[ data breach, protected health information, HIPAA ]
The Middlesex Sheriffs Office reported that a security breach occurred in January 2025 and that a comprehensive investigation (with state/federal law enforcement and private cybersecurity vendors) determined on November 19, 2025 that the incident involved unauthorized access to protected health information. The exposed PHI may have included names, home addresses, dates of birth, diagnoses, and other general health information related to individuals who may have received medical care through the Sheriffs Office. Public reporting indicated the breach represented a HIPAA-related incident; the organization did not specify the number of affected individuals in the public notice and did not disclose the initial access vector or whether any data was exfiltrated beyond unauthorized viewing/access.
AZ Monica
January 13, 2026
•[ cyberattack, operational disruption, healthcare ]
AZ Monica hospital in Antwerp reported a cyberattack discovered around 6:30 a.m. after staff observed a serious IT failure. As a precaution, the hospital shut down all servers across both campuses (Deurne and Antwerp/Harmonie), and law enforcement opened an investigation with the cyber crime unit on site. Because clinicians could not access electronic patient records, the hospital postponed non-urgent care and maintained emergency care at a reduced level. Reporting stated at least 70 planned operations were cancelled, roughly 70 patients were sent home, and seven patients were transferred to other hospitals as a precaution. Public reporting did not confirm encryption, ransom demands, or data theft, focusing primarily on operational disruption and patient-care impact.
University of Hawaii Cancer Center
August 31, 2025
•[ ransomware, data breach, Social Security numbers ]
The University of Hawaii Cancer Center disclosed an August 2025 ransomware incident in which attackers gained unauthorized access to its network, encrypted files, and stole research files containing patient-related information. Reporting indicates the intrusion was discovered on or around August 31, 2025, after which affected servers were isolated and an investigation began. The Cancer Center stated its electronic medical record system was not impacted, but research datasets were affected and a subset of older records included Social Security numbers because they were historically used as identifiers in the 1990s. Due to the sensitivity of the data and the extent of encryption, the organization engaged external experts, obtained a decryption tool, and reported paying a ransom in exchange for a claimed promise by the attackers to delete stolen data, while continuing longer-term recovery and security hardening.
Canopy Healthcare
July 18, 2025
•[ unauthorized access, data breach, data leak ]
DataBreaches summarized RNZ reporting that Canopy Health said it identified on July 18, 2025 that an unknown person temporarily obtained unauthorized access to part of its systems used by its administration team. Canopy said forensic review indicated unauthorized access to one of its servers likely occurred and that some data may have been copied. The provider stated the incident was contained, that an investigation was ongoing, and that it sought and obtained an urgent High Court injunction to prevent use or publication of any information that may have been accessed. The report did not enumerate specific data elements or counts of affected individuals.
Southern Oregon Neurosurgery
December 30, 2025
•[ email compromise, hacking, data leak ]
Southern Oregon Neurosurgery (Southern Oregon Neurosurgical and Spine Associates, PC) disclosed a hacking incident that stemmed from an email breach and affected at least 1,000 individuals. According to reporting, the incident occurred in November 2025; the organization said its IT staff isolated the issue immediately once identified. The breach was reported to HHS as a hacking/IT incident involving email, indicating unauthorized access to email content (and potentially attachments) that contained patient-related information. While public reporting did not enumerate every exposed field, the confirmed impact is unauthorized access via email compromise with resultant exposure risk to individuals whose information was present in the affected mailbox(es).
Sports Medicine and Orthopedics
December 30, 2025
•[ ransomware, data leak, healthcare ]
Sports Medicine & Orthopaedics, a now-closed practice in East Providence, Rhode Island, reported that it was impacted by a ransomware incident in October 2025. Reporting indicates the attack exposed personal and health-related information for roughly 4,000 patients, prompting the practice to issue breach notifications after it had already shut down operations. Public accounts describe a ransomware-driven compromise that resulted in unauthorized access to patient information (typical elements in these incidents include identifiers and clinical/billing-related data), with the key confirmed impact being exposure of patient data tied to the practice rather than a long-running operational outage (since the practice was shuttered).
Central Ozarks Medical Center
November 10, 2025
•[ cyberattack, unauthorized access, data breach ]
Patients and individuals had their sensitive personal and health information exposed in a criminal cyberattack on Central Ozarks Medical Center. The breach involved unauthorized access to systems and resulted in the compromise of names, dates of birth, Social Security numbers, financial account details, medical treatment records, and health insurance information, according to investigation notices.
Lena Health
December 15, 2025
•[ data leak, healthcare, insecure server ]
AI digital helper Lena Health breach allegedly exposed sensitive Houston Methodist patient data on a dark web forum; access claimed via insecure server.
Denton County MHMR Center (My Health, My Resources)
December 24, 2024
•[ data leak, healthcare ]
Denton County MHMR Center disclosed unauthorized access to its network occurring between December 24 and December 25, 2024. A forensic investigation determined that patient protected health information was accessed. The organization notified affected individuals and regulators in 2025; no attacker-caused operational disruption was publicly reported.
ManageMyHealth
December 30, 2025
•[ ransomware, data leak, healthcare ]
A significant volume of patient medical records was accessed and partially encrypted in a cyber intrusion targeting document systems The threat actor issued a ransom demand and published some data samples online before legal action was taken The breach was discovered in late December and publicly confirmed shortly after
TriZetto Provider Solutions,
January 11, 2024
•[ data leak, healthcare ]
TriZetto Provider Solutions, a Cognizant-owned vendor providing revenue management services to healthcare organizations, reported a cybersecurity incident affecting a customer web portal. TriZetto identified suspicious portal activity on 10/02/2025, secured the portal, and engaged Mandiant to investigate and validate remediation. Forensic work determined an unauthorized third party had been accessing historical eligibility transaction reports within TriZetto systems since November 2024, nearly a year before detection. The reports contained protected health information for patients of certain healthcare provider clients. TriZettos review determined compromised data could include patient and primary insured names combined with other personal and insurance information such as addresses, dates of birth, Social Security numbers, member/Medicare numbers, insurer names, and related demographic health and coverage details. TriZetto stated it believed the actor had been eradicated and no further unauthorized portal activity was detected after 10/02/2025; the total number of affected clients/individuals was not yet publicly confirmed.
Vitas Hospice
September 21, 2025
•[ data leak, third-party breach, healthcare ]
Vitas Hospice Services (Vitas Healthcare) detected a cybersecurity intrusion on 10/24/2025. According to the organizations breach notice and subsequent reporting, the threat actor gained access to certain Vitas systems by using a compromised third-party vendor account. The unauthorized access persisted from approximately 09/21/2025 through 10/27/2025, and the attacker downloaded files containing personal information of current and former patients. Exposed data elements included identifiers (name, address, phone number, date of birth), government identifiers (drivers license number and Social Security number), and protected health information such as medical and insurance details, plus next-of-kin contact information. Government breach tracking and reporting indicated 319,177 individuals were affected. Vitas stated it took steps to secure systems, investigate, and notify impacted individuals, though the specific malware or group responsible was not publicly identified.
Mid South Pulmonary & Sleep Specialists (MSPS)
November 17, 2025
•[ ransomware, data leak, data breach ]
Reporting on Anubis RaaS described a severe ransomware incident affecting Mid South Pulmonary & Sleep Specialists (MSPS) in Tennessee. The threat actor claimed initial access on Nov. 10, 2025, spent about a week conducting internal reconnaissance and data theft, then paralyzed the organizations network in a single night. The group claimed to have encrypted MSPSs Nutanix systems and used a wiper to delete backups, leaving MSPS unable to restore systems; the actor also claimed exfiltration of roughly 860 GB and leakage of hundreds of gigabytes containing administrative records, insurance billing files, and extensive PII/PHI. MSPS had not publicly confirmed details in the reporting, but the described impacts suggest prolonged disruption and exposure of sensitive medical data.
Philadelphia Corporation for Aging
July 10, 2025
•[ data leak, healthcare ]
A data breach at the Philadelphia Corporation for Aging allowed unauthorized access to systems between July 10 and July 25, 2025, during which personal and protected health information for 19,820 individuals was copied. PCA filed notice on November 4, 2025.
Weda (Medical Software)
November 10, 2025
•[ cyberattack, denial of service, healthcare ]
On November 10, 2025, Weda medical software used by general practitioners across France experienced a major cyberattack that rendered the system inaccessible. Physicians were unable to view or transmit patient medical records for several days. Service resumed only in degraded mode on November 14. No evidence of data encryption or exfiltration has been reported.
Personic Management Company LLC d/b/a Personic Health
August 29, 2025
•[ data leak, healthcare, third-party breach ]
Healthcare management firm Personic Management Company (Personic Health) reported that an unauthorized actor accessed a third-party software platform used to process patient information on August 29, 2025. The intrusion, discovered on September 1, enabled the attacker to obtain data containing patients names and associated protected health information from Personic-affiliated providers. After engaging external cybersecurity experts and notifying law enforcement, Personic filed breach notices with state regulators and began sending letters to impacted individuals, warning them about identity-theft risks and the potential misuse of their medical data.
Doctors Hospital at Renaissance, Ltd. (DHR Health)
May 15, 2025
•[ data leak, healthcare ]
Doctors Hospital at Renaissance (DHR Health) notified the U.S. Department of Health & Human Services that it had experienced a data breach impacting sensitive personal and protected health information. An unauthorized party accessed systems storing patient records, potentially exposing names, Social Security numbers, clinical details, and insurance data for an undisclosed number of individuals. The hospital has since notified the Texas Attorney General and begun mailing breach letters, while law firm investigators explore potential compensation claims for patients whose information may be at heightened risk of identity theft and medical fraud.
St. Anthony Hospital (Chicago)
February 6, 2025
•[ data leak, healthcare, unauthorized access ]
St. Anthony Hospital in Chicago reported that on February 6, 2025 it discovered a data breach involving a small number of employee email accounts that had been accessed by an unauthorized actor. The compromised mailboxes contained personal and medical information such as names, addresses, dates of birth, Social Security numbers, medical record and account numbers, prescription details, and medical histories for roughly 6,679 individuals. The hospital engaged outside cybersecurity experts, reset credentials, and began notifying potentially affected patients and staff while offering guidance on credit monitoring. Officials said there was no evidence of misuse yet but warned people to remain vigilant for fraud or identity theft.
Legacy Health, LLC
October 24, 2025
•[ data leak, healthcare ]
Legacy Health LLC, a Dallas-based healthcare revenue cycle management company, disclosed that it experienced a data breach affecting 4,031 Texas residents. According to breach notices and law firm investigations, an Undetermined actor accessed data used in medical billing and revenue cycle services, exposing sensitive personal and protected health information. Compromised data includes individuals' names, medical information and health insurance details, increasing the risk of medical identity theft and insurance fraud for affected patients. Legacy Health mailed notification letters on October 24, 2025 and reports that it has taken steps to secure its systems and strengthen cybersecurity controls.
ModMed (Modernizing Medicine)
October 24, 2025
•[ data leak, healthcare, third-party breach ]
Modernizing Medicine (ModMed) said it discovered unauthorized activity on July 29, 2025, and confirmed that attackers had accessed and exfiltrated data from servers hosting podiatry-client EHR information between July 910. Exposed fields include full names, addresses, DOB, SSNs, contact details, health insurance info, medical record and patient account numbers, dates of service, providers/practices, billing/diagnostic codes, prescription/medication data, and diagnosis/treatment information; providers were notified on September 19 and patients on October 17. Days later, a seller advertised a partial EHR database (1,0001,500 podiatry patient records) on a breach forum/Telegram, indicating financially motivated data trafficking, though ModMed has not confirmed a second intrusion. Overall impact: large-scale PHI exposure from vendor-hosted servers, with evidence of downstream data sale attempts.
