Issaqueena Pediatric Dentistry in South Carolina, Enhabit Home Health & Hospice in Texas, and AltaMed Health Services in California have announced that patient data has potentially been compromised in ransomware attacks.

Issaqueena Pediatric Dentistry, South Carolina

Issaqueena Pediatric Dentistry in Seneca, South Carolina, has recently reported a hacking incident to the HHS’ Office for Civil Rights that involved unauthorized access to personally identifiable information and protected health information. The incident is still being investigated, so the number of affected individuals has yet to be confirmed. The OCR breach portal currently lists the incident as affecting at least 501 individuals.

In a substitute breach notice on its website, Issaqueena Pediatric Dentistry confirmed that an unauthorized third party gained access to certain files on its system between November 9 and November 11, 2025. Issaqueena Pediatric Dentistry discovered the intrusion on November 11, 2025, when ransomware was used to encrypt files. Its incident response protocols were activated, steps were taken to contain the incident, and law enforcement was notified.

Issaqueena Pediatric Dentistry said files are being reviewed to determine the affected individual and the types of data involved, warning that it is a time-intensive process. Notification letters will be mailed to the affected individuals as soon as possible. The Interlock ransomware group claimed responsibility for the attack, said it exfiltrated 118 GB of data, and listed the data for download on its dark web data leak site, which suggests the ransom was not paid.

Issaqueena Pediatric Dentistry said its network has been secured, and it is working with third-party security experts to implement measures to harden security. Issaqueena Pediatric Dentistry has confirmed that the affected individuals will be offered complimentary credit monitoring and identity theft protection services.

Advanced Homecare Management (Enhabit Home Health & Hospice), Texas

Advanced Homecare Management, LLC, doing business as Enhabit Home Health & Hospice in Dallas, Texas, has notified 22,552 patients that some of their protected health information was compromised in a data breach at one of its business associates.

My 485, Inc., which does business as Doctor Alliance, provides a platform that facilitates the sharing of medical information between doctors and home health agencies and hospices. Enhabit Home Health & Hospice said one or more medical providers may have used the Doctor Alliance platform to facilitate care at entities affiliated with Enhabit, and the platform contained patients’ protected health information.

On December 5, 2025, Doctor Alliance informed Enhabit about a potential security incident involving the data of certain Enhabit patients. Doctor Alliance determined that the platform was subject to unauthorized access between October 31, 2025, and November 6, 2025, and again between November 14, 2025, and November 17, 2025. The platform was accessed by an unauthorized individual using valid credentials for a user account, which allowed access to protected health information such as names, addresses, dates of birth, patients’ gender, physician names, medical record numbers, clinical information, and health plan numbers. Enhabit said financial information and Social Security numbers were not compromised in the incident.

Doctor Alliance has implemented additional authentication mechanisms in the affected software and has notified regulators about the breach. The incident is not yet shown on the OCR breach portal, so the scale of the breach is currently unknown. This appears to have been a ransomware attack. The Kazu ransomware group claimed responsibility.

AltaMed Health Services Corporation, California

AltaMed Health Services Corporation, a provider of primary care, senior care, and health and human services in California, has alerted patients about a cybersecurity incident on December 14, 2025. The incident limited access to some of its computer systems; language often used to describe a ransomware attack.

AltaMed said it immediately initiated its incident response protocols when the cyberattack was detected and worked quickly to contain the incident. Third-party cybersecurity experts were engaged to assist with the investigation, and law enforcement was notified. Under its emergency protocols, AltaMed continued to provide care to patients as scheduled and remained operational throughout the recovery.

The investigation into the incident is ongoing; however, it has been determined that the compromised systems contained some patient information, including names, dates of service, and payment information. Additional safeguards and technical security measures have been implemented to further protect and monitor its systems. The affected individuals have been advised to review their statements and explanation of benefits statements and should report any charges for services that they have not received. Regulators have been notified; however, the incident is not yet shown on the HHS’ Office for Civil Rights breach portal, so it is currently unclear how many individuals have been affected.

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Academic Urology & Urogynecology of Arizona, a division of Palo Verde Hematology and Oncology that serves patients throughout Arizona, has announced a significant data breach, potentially affecting 73,281 current and former patients.

Unauthorized access to its computer network was detected on or around May 22, 2025. Steps were taken to secure its network to prevent further unauthorized access, and third-party cybersecurity experts were engaged to conduct a forensic investigation. On January 30, 2026, it was confirmed that there had been unauthorized access to its network between May 18, 2025, and May 22, 2025, during which time, files containing patient data may have been viewed or acquired.

The data involved varies from individual to individual and may include some or all of the following: full names, dates of birth, Social Security numbers, account numbers, account types, routing numbers, medical record numbers, mental or physical conditions, diagnoses/diagnosis codes, treatment locations, procedure types, provider names, dates of service, other medical benefits/entitlements, prescription information, health insurance group numbers, health insurance claim numbers, subscriber member numbers, patient account numbers and patient identification numbers.

Notification letters were mailed to the affected individuals on or around February 12, 2026. At the time of issuing notifications, no evidence had been found to indicate misuse of patient data. As a precaution, the affected individuals have been offered complimentary credit monitoring and identity theft protection services.

Livingston HealthCare, Montana

Livingston HealthCare in Livingston, Montana, has warned patients about a recent cybersecurity incident that may have resulted in unauthorized access to patient data. Livingston HealthCare, which operates a critical access hospital serving the greater Park County area, announced on February 13, 2026, that it was experiencing disruption to its phone systems and network due to a suspected cybersecurity incident.

Certain systems were taken offline while the incident was assessed, and it is working to restore the affected systems and will bring them back online when it is safe to do so. The phone system has been restored, and while network services are still limited, care continues to be provided to patients uninterrupted. At this stage of the investigation, it is not possible to determine the extent to which patient data has been compromised. Livingston HealthCare said it will continue to provide updates on the incident, recovery, and any data breach via its website.

Livingston HealthCare said it has learned of advertisements and communications suggesting patients could be entitled to compensation as a result of the incident. Patients have been warned not to disclose any sensitive information, such as Social Security numbers, banking information, or other confidential details, unless they are certain of the recipient’s identity and legitimacy.

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Managed Care Advisors and Sedgwick Government Solutions recently announced a cybersecurity incident involving unauthorized access to a corporate Secure File Transfer Protocol (SFTP) server that contained personal and protected health information. Files on the server were encrypted with ransomware.

Sedgwick Government Solutions, which acquired Managed Care Advisors in 2021, is a Bethesda, MD-based federal government contractor that provides workers’ compensation and managed care solutions. Sedgwick is also the manager of the Nationwide Provider Network for the World Trade Center Health Program.

Data breach notices often fail to disclose the exact nature of hacking incidents, which makes it difficult for victims to accurately gauge the level of risk they face. Sedgwick bucked that trend, opting for transparency over the data breach. Sedgwick explained that the incident was detected on December 4, 2025, and it immediately implemented its incident response processes. All connections to the SFTP server were disabled to prevent further unauthorized access, and the encrypted data was restored from a secure system backup the following day.

A leading cybersecurity firm, Mandiant, was engaged to assist with the investigation and forensic analysis. The investigation confirmed that an unauthorized third party first accessed the server on November 16, 2025, by exploiting a vulnerability in the SFTP application. Access was only gained to a single server. No other systems were compromised.

The investigation confirmed on January 15, 2026, that the compromised server contained first and last names, addresses, Social Security numbers, dates of birth, and protected health information. The types of data varied from individual to individual. Sedgwick said that on January 2, 2026, a threat group identifying itself as TridentLocker claimed responsibility for the incident and published approximately 3.4 GB of data on a dark web data leak site.

Since stolen data has been published, the affected individuals should ensure that they sign up for the complimentary credit monitoring and identity theft protection services being offered. Those services include an identity theft insurance policy. Sedgwick said it had implemented cybersecurity measures prior to the incident to protect its systems and data, and has taken further steps to enhance privacy protections. The data breach is not yet shown on the HHS’ Office for Civil Rights breach portal, so it is currently unclear how many individuals have been affected.

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Data breaches have been confirmed by the revenue cycle management company MedRevenu Inland Physicians Hospitalist Services, and the Missouri-based eye care provider, EyeCare Partners.

MedRevenu Inland Physicians Hospitalist Services

MedRevenu Inland Physicians Hospitalist Services, a Montclair, CA-based vendor that provides revenue cycle management services to healthcare providers, has recently notified the California Attorney General about a cybersecurity incident. The incident occurred on or around December 12, 2024, and caused disruption to its network. The forensic investigation determined that files containing personal and protected health information may have been accessed or acquired in the incident, including names, dates of birth, Social Security numbers, driver’s license numbers/government identification numbers, health insurance information, medical information, financial account numbers, payment card numbers, and access information.

MedRevenu said it is reviewing and enhancing its cybersecurity measures and has offered the affected individuals complimentary single-bureau credit monitoring, credit report, and credit score services for 12 months. The BianLian threat group claimed responsibility for the attack and added MedRevenu to its dark web data leak site on December 14, 2024. Since data has been leaked, the affected individuals should ensure that they sign up for the credit monitoring services being offered and carefully check their account statements for data misuse, going back to December 2024. The incident is not yet shown on the HHS’ Office for Civil Rights breach portal, so it is currently unclear how many individuals have been affected.

EyeCare Partners

EyeCare Partners, LLC, a St. Louis, MO-based nationwide provider of eye care services, has recently announced an email security incident that was first identified on January 28, 2025. Suspicious email activity was identified, and an investigation was launched, which confirmed that an unauthorized third-party had accessed multiple managed email accounts between December 3, 2024, and January 28, 2025.

It took until November 11, 2025, to review the compromised accounts, and notifications were issued to appropriate state attorneys general in February 2026. Data compromised in the incident includes names, contact information, dates of birth, Social Security numbers, driver’s license numbers/state identification numbers, health plan information, and limited clinical information.

EyeCare Partners said it has no reason to believe that any of the exposed information has been misused for identity theft or fraud; however, out of an abundance of caution, the affected individuals have been offered complimentary single-bureau credit monitoring, credit report, and credit score services for 24 months. EyeCare Partners said it has reviewed and enhanced its technical security measures and has provided further reminders to employees about how to recognize and avoid phishing attempts. The incident has been reported to the HHS’ Office for Civil Rights as affecting 17,110 individuals, including patients of The Ophthalmology Group, Ophthalmology Consultants, and Ophthalmology Associates.

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The Counseling Center of Wayne and Holmes Counties has experienced a cyberattack affecting 83,350 individuals. Data breaches have also been announced by Neurological Associates of Washington and Pecan Tree Dental.

Counseling Center of Wayne and Holmes Counties

The Counseling Center of Wayne and Holmes Counties (CCWHC) in Wooster, Ohio, has experienced a data security incident affecting 83,354 individuals. On March 3, 2025, CCWHC’s third-party service provider notified CCWHC about a cybersecurity incident, which caused disruption to its IT systems. An investigation was launched, and steps were taken to contain and remediate the incident. All impacted systems and accounts were removed, credentials were reset, and leading data privacy and security experts were engaged to assist with the investigation.

The forensic investigation determined that an unauthorized third party gained access to a single CCWHC server on March 2, 2025, and exfiltrated files on March 3, 2025. Based on the initial findings of the investigation, the general types of information compromised in the incident include names, dates of birth, Social Security numbers, driver’s license numbers/state identification numbers, health insurance information, medical condition information, treatment provider names, medical record numbers, treatment cost information, diagnoses, and treatment information.

CCWHC has worked with cybersecurity experts and privacy professionals to review and further strengthen system security. The file review was completed on December 9, 2025, and notification letters have now been mailed to the affected individuals.

Neurological Associates of Washington

Neurological Associates of Washington (NAW) has recently confirmed that the personal and protected health information of 13,500 individuals was stolen in a December 2025 cyberattack. It is now rare for a healthcare provider to disclose details about a hacking incident in its data breach notice; however, NAW has bucked that trend and disclosed that the Dragonforce ransomware group was behind the attack. NAW also confirmed that sensitive patient data was stolen and published on the dark web by Dragonforce.

NAW immediately alerted the Federal Bureau of Investigation (FBI), which investigated the incident and confirmed that the stolen data was published on the dark web on December 28, 2025. The FBI is conducting further investigations into the attack, but has confirmed that the data compromised in the incident related to patients from 2019 to 2025. Data compromised in the incident included names, addresses, dates of birth, Social Security numbers, diagnoses, disability codes, medical information, and other types of data. New patients from January 2025 onwards had their data added to a new cloud-based records system, which was not accessed in the attack.

NAW said it has implemented a deep reset and restructuring of its IT system in response to the incident and confirmed that the affected database is now stored in an offline environment. At the time of issuing notifications, NAW said it was unaware of any actual or attempted misuse of the stolen data. As a precaution against identity theft and fraud, the affected individuals have been offered 12 months of complimentary credit monitoring services.

Pecan Tree Dental

Pecan Tree Dental, PLLC, in Grand Prairie, Texas, has confirmed that it experienced a cybersecurity incident involving unauthorized access to its computer systems. The website notice is light on detail, only stating that steps have been taken to secure its systems, and cybersecurity and legal professionals have been engaged to assist with the investigation. At the time of uploading the notice to its website, it was unaware of any unauthorized access to patient information or data misuse. The OCR breach portal indicates that up to 13,300 individuals had their protected health information exposed in the incident.

The Texas attorney general was informed that data compromised in the incident includes names, addresses, dates of birth, medical information, and health information. This appears to have been a ransomware attack by the Sinobi threat group, which added Pecan Tree Dental to its dark web data leak site on January 11, 2026. Sinobi claims to have exfiltrated 250 Gb of data in the attack and has leaked the stolen data.

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Data breaches have been announced by the Connecticut diagnostic laboratory Precipio, Pit River Health Service in California, and Tulane University Medical Group in Louisiana.

Precipio, Inc.

Precipio, Inc., a Connecticut-based laboratory specializing in advanced hematopathology diagnostics, has discovered unauthorized access to an employee’s cloud-based storage account. Suspicious activity was identified within the email account on or around November 25, 2025, and the investigation confirmed that an unauthorized third party accessed the employee’s account from November 23, 2025, to November 25, 2025, during which time, files were copied from the account.

The affected files are currently being reviewed to determine the information involved, and that process is currently ongoing. Precipio has yet to disclose a final list of the affected data, but said that, based on its investigation so far, information compromised in the incident includes names, addresses, dates of birth, medical record numbers, clinical/treatment information, medical procedure information, medical provider names, prescription information, and health insurance information.

Since the file review has not yet concluded, the HHS’ Office for Civil Rights has been provided with an interim total of at least 501 affected individuals. The total will be updated when the file review is completed.

Pit River Health Service

Pit River Health Service, the operator of two healthcare clinics in Burney and Alturas in California, has recently announced a data breach affecting up to 1,800 individuals. An unauthorized third party hacked its systems and potentially copied data. Pit River Health Service has confirmed that no data was altered or deleted in the attack, and the Indian Health Service medical record system was not accessed.

In a website update, Pit River Health Service confirmed that some of the affected systems have been restored, although a more extensive security review has been conducted for other affected systems. As a result of the attack, some patient services have been delayed, but appointments and services are continuing. In response to the incident, security monitoring has been stepped up across all of its IT systems.

Tulane University Medical Group

A data breach has been reported to the HHS’ Office for Civil Rights by Administrators of the Tulane Educational Fund d/b/a Tulane University Medical Group. The Louisiana-based medical group experienced a ransomware attack that involved unauthorized access to the protected health information of 6,530 patients.

Tulane University Medical Group does not currently have a substitute data breach notice on its website, so it is unclear exactly what types of information were compromised in the incident. The Cl0p ransomware group claimed responsibility for the attack and added the medical group to its data leak site. Cl0p exploits vulnerabilities in mass attacks, typically vulnerabilities in file-sharing software. Sensitive data is stolen, and ransom demands are issued. Cl0p claims to have exploited a vulnerability on or around November 18, 2025.

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Jefferson-Blount-St. Clair Mental Health Authority in Alabama, Cottage Hospital in New Hampshire, WindRose Health Network in Indiana, and Iroquois Memorial Hospital in Illinois have announced that patient data has been exposed in hacking incidents.

Jefferson-Blount-St. Clair Mental Health Authority, Alabama

Jefferson-Blount-St. Clair (JBS) Mental Health Authority in Alabama has notified more than 30,000 individuals that some of their personal and protected health information was exposed and potentially acquired in a ransomware attack. Suspicious activity was identified within its computer network on or around November 25, 2026. The investigation confirmed that hackers gained access to its network on November 25, 2026, and potentially viewed or acquired information relating to individuals who were patients or employees between 2011 and 2025.

The file review has recently concluded and confirmed that the exposed data included names, Social Security numbers, health insurance information, dates of birth, and medical information, which may have included diagnoses, physician information, medical record numbers, Medicare/Medicaid information, prescription/medication information, diagnostic and treatment information, and billing or claims information.

The affected individuals have been advised to remain vigilant against identity theft and fraud by monitoring their accounts and explanation of benefits statements. The HHS’ Office for Civil Rights breach portal indicates 30,434 individuals were affected by the incident.

Cottage Hospital, New Hampshire

Cottage Hospital, a 35-bed critical access hospital in Woodsville, New Hampshire, has detected unauthorized access to its computer network. The forensic investigation confirmed that hackers had access to a single file server on its computer network from October 14, 2025, to October 21, 2025, and on December 8, 2025, the hospital confirmed that files had been exfiltrated in the incident.  The review of the files is ongoing, although it has been confirmed that the server contained current and former employees’ names, Social Security numbers, driver’s license numbers, and potentially bank account information.

The breach notice submitted to the Maine Attorney General indicates 2,156 individuals were affected, including 83 Maine residents. The affected individuals have been offered complimentary credit monitoring, identity theft restoration, and fraud consultation services. The hospital has confirmed that it will continue to implement and evaluate enhanced safeguards and security measures to better protect sensitive data on its network.

WindRose Health Network, Indiana

WindRose Health Network, a Federally Qualified Health Center with five health centers in Indiana, has notified certain patients about a security incident identified on August 22, 2025. The security breach was detected quickly, with the unauthorized access determined to have commenced on the morning of August 22, 2025. The compromised parts of the network contained personal and protected health information, which may have been accessed or acquired.

A data review firm was engaged to determine the types of information in the exposed files and the individuals affected. That process was recently completed, and the results were assessed to determine the individuals who required notifications. Data compromised in the incident vary from individual to individual and may include names in combination with one or more of the following: contact information, date of birth, patient identification number, date(s) of service, provider name(s), diagnosis, treatment information, prescription(s), medical history, lab reports, health insurance information, and limited number government identification numbers, such as driver’s license number or Social Security number.

Third-party cybersecurity experts were engaged to investigate the incident, review security, and further secure its systems. The affected individuals have been advised to remain vigilant against identity theft and fraud. The HHS’ Office for Civil Rights breach portal indicates 691 individuals were affected by the incident

Iroquois Memorial Hospital, Illinois

Iroquois Memorial Hospital in Watseka, Illinois, has recently reported a hacking incident to the HHS’ Office for Civil Rights involving unauthorized access or theft of patients’ protected health information. A substitute breach notice has yet to be posted to the hospital’s website, so it is unclear exactly what types of data were compromised in the incident. The Pear threat group claimed responsibility for the attack.

Pear engages in data theft and extortion but does not encrypt files. The group maintains a data leak site and added Iroquois Memorial Hospital to the site on December 11, 2025. The listing is still active, which suggests the ransom was not paid. The HHS’ Office for Civil Rights breach portal indicates 621 individuals were affected by the incident

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Central States Dermatology Services (DOCS Dermatology Group) in Ohio and The Center for Neuropsychology and Learning in Michigan have identified unauthorized access to patient data.

Central States Dermatology Services, Ohio

Central States Dermatology Services, LLC, doing business as DOCS Dermatology Group (DOCS), has disclosed a security incident that was identified on November 27, 2025. Suspicious activity was identified within its network, and, assisted by third-party cybersecurity experts, DOCS determined that an unauthorized third party had access to its network from November 19, 2025, to November 27, 2025.

The data review is ongoing, so the number of affected individuals had yet to be confirmed; however, DOCS has determined that the data compromised in the incident includes names in combination with one or more of the following: address, email address, phone number, date of birth, Social Security number, treatment/diagnosis information, prescription/medication information, dates of service, provider name, medical record number, patient account number, Medicare/Medicaid ID number, health insurance information, and/or medical billing/claims information. DOCS is reviewing its policies and procedures related to data security and has engaged cybersecurity experts to review its security measures and make enhancements to strengthen security. At the time of the announcement, DOCS had not identified any misuse of the affected information.

The Center for Neuropsychology and Learning, Michigan

The Center for Neuropsychology and Learning in Ann Arbor, Michigan, has discovered that a malicious cyber actor accessed a server containing the sensitive data of 3,722 of its clients. The unauthorized access was detected on November 10, 2025, and the forensic investigation confirmed that the server was accessed at some point between October 14 and October 31, 2025.

The server was analyzed and found to contain protected health information such as names, dates of birth, contact information, service type(s), and or test reports. Highly sensitive information, such as Social Security numbers, financial information, and therapy notes, was not stored on the server. The Center for Neuropsychology and Learning has confirmed that the threat has been fully mitigated, and notifications have been mailed to the affected individuals, who have been offered 12 months of complimentary credit monitoring and identity theft protection services as a precaution.

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