Centers Lab NJ LLC, a Hanover, New Jersey-based diagnostic testing laboratory that provides medical and diagnostic testing services to healthcare providers, has announced an August 2025 cybersecurity incident affecting more than half a million patients of its healthcare provider clients.

Suspicious activity was identified within its computer systems on August 25, 2025. Systems were isolated to contain the incident, and steps were taken to prevent further unauthorized access. The forensic investigation confirmed that an unauthorized third party gained limited access to certain systems between August 9, 2025, and August 14, 2025. The forensic investigators determined that files containing patient data were exfiltrated from its systems by an unauthorized third party.

Centers Lab engaged third-party data review specialists to perform a detailed review of the impacted data, and after that process was completed, the findings were internally validated. The validation process has recently been completed, and notification letters have been mailed to the affected individuals.  The information compromised in the incident varies from individual to individual and may include names in combination with some or all of the following: date of birth, Social Security number, passport number, driver’s license number/state ID number, medical information, and health insurance information.

Centers Lab said additional data security measures have been implemented to prevent similar incidents in the future, stressing that strong cybersecurity measures had already been implemented prior to the incident. As a precaution against data misuse, the affected individuals have been offered complementary credit monitoring and identity theft protection services for between 12 and 24 months. The data breach was reported to the HHS’ Office for Civil Rights as involving the protected health information of 542,377 individuals.

While not disclosed by Centers Lab, the Worldleaks threat group claimed responsibility for the attack and published the stolen data on its dark web data leak site. The affected individuals should therefore take advantage of the free services being offered as a precaution against data misuse.

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All About Women’s Care in Colorado has notified 12,000 patients that their data has been compromised in a data breach, and Mid-South Pulmonary Sleep Specialists in Tennessee is assessing the impact of a November 2025 ransomware attack.

All About Women’s Care, Colorado

All About Women’s Care, an Englewood, CO-based obstetrics and gynecology practice, has identified unauthorized access to its IT environment. Suspicious activity was identified involving an employee VPN account. Third-party cybersecurity experts were engaged to investigate the activity and confirmed that an unauthorized actor obtained the credentials for the VPN account and used them to access its network environment. Files were copied in the attack, the review of which was completed on June 5, 2026.

The file review confirmed that the impacted data included names, dates of birth, Social Security numbers, driver’s license numbers, other ID numbers, clinical/treatment information, lab results, prescription information, provider information, medical documents, ultrasound images, copies of identification documents (such as passports), and health insurance information.

The practice is working with cybersecurity professionals to enhance security and prevent similar incidents in the future, and policies and procedures related to data privacy and security are being reviewed. The data breach was recently reported to the HHS’ Office for Civil Rights as affecting up to 12,000 patients.

Mid-South Pulmonary Sleep Specialists, Tennessee

Mid-South Pulmonary Sleep Specialists, a Memphis, Tennessee-based pulmonary and sleep medicine practice, has started notifying certain patients about a cybersecurity incident that exposed their personal and protected health information.

Suspicious activity was identified within its computer network on November 2, 2025. The network was secured, and assisted by third-party cybersecurity experts, the practice confirmed unauthorized network access and the exposure and potential theft of patient data. The data review was completed on May 18, 2026, and revealed that a wide range of data was exposed in the incident. The types varied from individual to individual, and may have included names in combination with one or more of the following: address, date of birth, date of service, driver’s license or state ID number, financial account information, health insurance information, medical diagnosis information, medical history, medical provider name, medical record number, medical treatment information, Medicare/Medicaid number, mental or physical condition, other patient identifier, patient account number, prescription information, and/or Social Security number.

Regulators have been notified, but the incident is not yet shown on the HHS’ Office for Civil Rights website, so it is unclear how many individuals have been affected. The website breach notice does not state the nature of the attack, or for how long the threat actors had access to its network.

This appears to have been a ransomware attack, as the Anubis ransomware claimed responsibility and added Mid-South Pulmonary Sleep Specialists to its data leak site in late November 2025, along with samples of data allegedly stolen in the attack. Anubis claims that the data stolen includes patient information.

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Data breaches have recently been announced by the senior living company Ohio Living, Erlinger Health System in Tennessee, and Heart of America Eye Care in Missouri.

Ohio Living

The Westerville, Ohio-based nonprofit senior living company Ohio Living has identified unauthorized access to its network. Suspicious activity was identified within its computer network on April 17, 2026. Its network was secured, and an investigation was launched to determine the nature and scope of the activity, with assistance provided by third-party cybersecurity experts.

The forensic investigation confirmed unauthorized network access between April 16, 2026, and April 17, 2026, and the exfiltration of files containing patient information. While the specific types of information involved for each individual have yet to be determined, Ohio Living states that the categories of data likely involved include names, addresses, birth dates, Social Security numbers, medical histories, disability information, diagnostic and treatment information, prescription information, physician information, medical record numbers, health insurance information, and financial account/payment card information.

Ohio Living is reviewing its security policies and procedures and is implementing enhanced cybersecurity safeguards to prevent similar incidents in the future. The data review is ongoing, so the total number of affected individuals has yet to be determined. The HHS’ Office for Civil Rights has been informed that the data breach affected at least 500 individuals. The total will be updated when the data review is concluded.

Erlanger Health System

Erlanger Health System, a Chattanooga, Tennessee-based health system and operator of six hospitals and multiple healthcare facilities, has announced a security incident affecting a limited number of patients. The incident was detected on May 13, 2026, and affected 4,237 Erlanger Western California patients.

The investigation revealed that patient information was inadvertently sent to a billing partner that provides services for its Erlanger Tennessee campuses. The information was disclosed between July 1, 2025, and May 27, 2026, and related to individuals who had received anesthesia care. Those patients of Erlanger Western California received anesthesia care from a different anesthesia group.

The billing partner was a business associate and was therefore aware of its responsibilities with respect to HIPAA; however, it was an impermissible disclosure warranting breach notifications. The data transmitted included names, birth dates, medical record numbers, mailing addresses, email addresses, telephone numbers, internal hospital account numbers, insurance information, guarantor names, guarantor addresses, guarantor telephone numbers, dates of service, and limited medical information associated with surgical care, including operative notes.

Heart of America Eye Care

MVP VIP Holdco, doing business as Heart of America Eye Care, an ophthalmology and optometry services provider at its locations in Overland Park, Prairie Village and Shawnee Mission, KS, and Belton, MO, has notified regulators and patients about a hacking incident that exposed patient data.

The website breach notice does not state when the hacking incident was detected; however, the forensic investigation determined that patient information was viewed or copied from its systems between April 1, 2026, and April 6, 2026. The notice states that the investigation is underway to determine the extent to which protected health information was involved. The HHS’ Office for Civil Rights has been informed that the data breach affected at least 500 individuals. The total will be updated when the data review is concluded.

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Data breaches have been announced by Community Health Center of Buffalo in New York and the New Jersey law firm Greenbaum Rowe Smith & Davis.

Community Health Center of Buffalo, New York

Community Health Center of Buffalo (CHCB) in New York has identified a cybersecurity incident in which sensitive data was potentially accessed or acquired. Suspicious activity was identified within its computer network on April 21, 2026. Assisted by digital forensics experts, unauthorized network access was confirmed between April 20 and April 21, 2026.

The files are currently being reviewed to determine the types of data involved and the affected individuals. That process is ongoing; however, CHCB reports that the types of data likely involved includes names in combination with one or more of the following: address, date of birth, Social Security number, driver’s license, medical information such as diagnoses, treatment information, prescriptions/medications, treatment locations, lab results, medical record numbers, provider names, patient medical histories, and health insurance information

Data privacy and security practices are being reviewed, and steps are being taken to improve security. Credit monitoring and identity theft protection services will be made available. The data breach has been reported to the HHS’ Office for Civil Rights using an interim total of at least 501 affected individuals. The total will be updated when the investigation and file review are concluded.

Greenbaum Rowe Smith & Davis, New Jersey

Greenbaum Rowe Smith & Davis LLP, a New Jersey-based law firm, has started notifying 12,801 individuals about a breach of their protected health information. The practice provides legal services to healthcare practices in the state of New Jersey, which require access to certain patient data. The practice has confirmed that it experienced a cybersecurity incident involving unauthorized access to systems containing the data of patients of Atlantic Health System, Hackensack Meridian Health, and Trinitas Regional Medical Center.

Data exposed in the incident included names, Social Security numbers, medical information, health insurance information, and other personal data. At the time of issuing notifications, the practice was unaware of any public release of the impacted data. The practice is offering the affected individuals complimentary credit monitoring and identity theft protection services and has taken steps to improve security to prevent similar incidents in the future.

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Gay & Lesbian Community Services Center of Orange County, California, a provider of mental health, HIV testing, education and outreach, has identified unauthorized access to its network and the exposure of the personal and protected health information of up to 75,532 individuals.

Suspicious network activity was identified on or around December 26, 2025, and third-party cybersecurity experts were engaged to investigate the incident. They confirmed that there had been unauthorized access to the network from December 25 to December 26, 2025, and files containing sensitive information may have been viewed or acquired.

The review of the impacted data was completed on May 6, 2026, when it was confirmed that the following types of information were stored on the compromised parts of the network: full names, dates of birth, Social Security numbers, diagnosis information, prescription information, medical histories and treatment information, medical record numbers, health insurance information, driver’s license numbers, government identification numbers, state identification numbers, passport numbers, taxpayer identification numbers, financial account information, biometric identifiers, financial account information, and payment card information. The types of information involved varied from individual to individual.

Gay & Lesbian Community Services Center of Orange County said it is committed to maintaining the privacy of personal information in its possession and continually evaluates and modifies its security practices to enhance data privacy and security. The affected individuals have been advised to remain vigilant and monitor their account statements and free credit reports for suspicious activity. The website breach notice makes no mention of free credit monitoring or identity theft protection services.

Alta Orthopaedics

Alta Orthopaedics, a Santa Barbara, CA-based orthopedics practice with six locations in Santa Barbara, Santa Maria, Solvang, and Oxnard, has started mailing notification letters to patients affected by a recent security incident.

On March 10, 2026, the practice identified suspicious activity within its computer network. The forensic investigation determined that there had been unauthorized access to certain information on its network between February 3, 2026, and February 6, 2026. The review of the exposed files confirmed that they contained personal and protected health information such as names, addresses, phone numbers, Social Security numbers, driver’s license/state ID numbers, birth dates, billing codes, dates of service, reasons for visits, treatment costs, provider names, diagnoses, treatment information, clinical information, treatment location, medical record numbers, patient account numbers, and health insurance information.

The incident was reported to law enforcement, policies and procedures related to data privacy and security have been reviewed, and the affected individuals have been offered complimentary credit monitoring and identity theft protection services. Regulators have been notified; however, the number of affected individuals has yet to be publicly disclosed.

Lake Region Healthcare

Lake Region Healthcare, a nonprofit rural health system based in Fergus Falls, Minnesota, has notified individuals affected by a recent cybersecurity incident. Unauthorized access to its network was first identified on May 19, 2025. Law enforcement was notified, and an investigation was launched to determine the nature and scope of the unauthorized activity.

No evidence was found to indicate any unauthorized access to electronic medical records; however, files containing patient information may have been viewed or acquired on or around May 19, 2025. It has taken more than a year to review the affected data. That process was completed on June 5, 2026, when it was confirmed that names were exposed, along with one or more of the following: date of birth, Social Security number, medical record number, patient account number, health insurance information, contact information, medical and/or treatment information, government-issued identification, and/or financial information.

Lake Region Healthcare said it is unaware of any actual or attempted misuse of that data; however, as a precaution, the affected individuals have been offered complimentary identity theft protection services. The scale of the breach has yet to be publicly disclosed, although according to notifications to state attorneys general, 294 Texas residents and 20 Massachusetts residents are among the affected individuals.

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Aitkin County Health and Human Services in Minnesota has identified a breach of its email environment. Data breaches have also been confirmed by Decatur Diagnostic Laboratory in Alabama and Gem State Dermatology in Idaho.

Aitkin County Health and Human Services, Minnesota

Aitkin County Health and Human Services in Minnesota has identified a breach of its email environment. On April 8, 2026, an email account was found to be sending phishing emails. Immediate action was taken to secure its email system, and an investigation was launched to determine the scope of the breach. Assisted by third-party digital forensics experts, Aitkin County HHS determined that there had been unauthorized access to three employee email accounts between April 7, 2026, and April 8, 2026. The investigation confirmed that the contents of one of the accounts had been downloaded.

The accounts were reviewed and found to contain the protected health information of 83,114 individuals, including names, addresses, dates of birth, Social Security numbers, dates of service, locations of service, individual case identifying numbers, PMI numbers, medical or health information, diagnosis and/or treatment information, healthcare provider names, medications, health insurance identification numbers, information regarding the type and status of forms filed with MnCHOICES, the date forms were last modified, health insurance claims information and/or information related to services received by Aitkin County HHS. A report containing some of the above data types relating to individuals not associated with the County was also found in the email account.

Passwords have been changed, employees have received additional training on email cybersecurity practices, and efforts are continuing to raise awareness of phishing emails. The email retention policy has also been updated to reduce the impact of any future incidents, and additional cybersecurity measures and monitoring partnerships are being considered to strengthen security.

Decatur Diagnostic Laboratory, Alabama

Decatur Diagnostic Laboratory Inc., in Alabama, has recently reported a data breach to the HHS’ Office for Civil Rights using a placeholder estimate of at least 500 affected individuals. The clinical laboratory has added a breach notice to its website, which confirms that this was a hacking incident involving data exfiltration. The notice does not state when the breach was detected, or for how long the hacker had access to its network.

Decatur Diagnostic Laboratory has confirmed that the data exfiltrated in the attack included names in combination with one or more of the following: date of birth, Social Security number, driver’s license number, medical record number, and/or patient code. The affected individuals have been advised to remain vigilant against incidents of identity theft and fraud over the next 24 months. The notice does not mention free credit monitoring and identity theft protection services. While this was not confirmed as a ransomware attack, a ransomware group has claimed responsibility. The LockBit 5 group claims it exfiltrated data in the attack and added the lab to its dark web data leak site.

Gem State Dermatology, Idaho

Improper disposal incidents are the rarest category of data breach. The first such incident of the year to date affects Gem State Dermatology in Boise, Idaho. On July 8, 2026, patient documents containing HIPAA-protected data were found in a dumpster three miles from the dermatology practice. A member of the public identified boxes of paperwork that appeared to be billing statements containing medical and personal information of patients of the dermatology practice. In addition to paperwork, what appeared to be thousands of microscope slides containing patient information, and presumably biological samples, were also found in the dumpster.

The material has now been collected by the practice, and an internal investigation has been launched to determine how the incident happened. At this early stage of the investigation, the practice is unable to confirm how any patients have been affected by the incident.

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Drug and Alcohol Treatment Services, Inc., a Scranton, Pennsylvania-based provider of drug and alcohol addiction services, has agreed to settle class action litigation stemming from an October 2024 ransomware attack.

The attack resulted in the theft of the personal and protected health information of employees and patients. The HHS’ Office for Civil Rights was informed that 22,215 patients were affected. Data exposed or stolen in the incident included names, dates of birth, Social Security numbers, health insurance information, medical billing/claims information, patient account numbers, prescription/medication information, and diagnosis/treatment information.

Eight class action lawsuits were filed in response to the data breach, which were consolidated into a single complaint – Leo Woytach, et al v. Drug and Alcohol Treatment Services, Inc. – in the Court of Common Pleas of Lackawanna County, Pennsylvania. The consolidated lawsuit asserted claims for negligence, negligence per se, breach of contract, breach of implied contract, breach of fiduciary duty, breach of confidence, and unjust enrichment. The defendant denies all claims and contentions in the lawsuit and maintains there was no wrongdoing.

Following negotiations about a potential settlement and a full day of mediation, settlement terms were agreed upon that were acceptable to all parties. By settling, all parties avoid the costs, distraction, burden, and risks of a trial and related appeals. The defendant will establish a $549,000 settlement fund, from which attorneys’ fees and expenses, settlement administration/notification costs, and service awards for the eight class representatives will be paid. The remainder will be used to pay benefits to the class members.

The settlement covers individuals who were notified about the data breach and provides cash payments to individuals who submit a valid claim. Claims may be submitted for reimbursement of documented, unreimbursed losses due to the data breach up to a maximum of $5,000 per class member, or a claim may be submitted for a pro rata cash payment. The value of the cash payments will be determined by the number of valid claims received.  In addition, class members qualify for a free 12-month membership to a medical data monitoring service.

The deadline for filing an objection and opting out of the settlement is August 25, 2026. Claims must be submitted by September 24, 2026, and the final fairness hearing has been scheduled for November 24, 2026.

June 9, 2025: Drug and Alcohol Treatment Services Facing Multiple Class Action Data Breach Lawsuits

A Pennsylvania non-profit provider of drug and alcohol addiction services is facing multiple class action lawsuits over an October 2024 ransomware attack. Drug and Alcohol Treatment Services, Inc. (DATS), based at 441 Wyoming Avenue in Scranton, PA, identified unauthorized access to its computer network on October 6, 2024. The forensic investigation confirmed that an unauthorized third party had access to the protected health information of 22,215 individuals between October 5 and October 6, 2024. Data compromised in the incident included patient names, dates of birth, medical histories, treatment information, health insurance information, medical claims information, billing information, Social Security numbers, and financial information.

The data breach was confirmed by DATS on December 5, 2024; however, notification letters were not sent to the affected individuals until May 2, 2025. DATS said it was unaware of any misuse of the stolen data at the time of issuing notification letters and offered the affected individual complimentary credit monitoring and identity theft protection services. The notification letters did not state the exact nature of the cyberattack; however, the Interlock ransomware group claimed responsibility for the attack and said 150 GB of data was stolen. The ransom was not paid, so the group published the stolen data on its data leak site. The group claims the leaked files include the personal data of employees and patients.

Currently, at least eight class action lawsuits have been filed against DATS over the data breach. The lawsuits make similar claims, including negligence for failing to protect its information technology systems and sensitive patient and employee data. The lawsuits claim the data breach could have been prevented if DATS had implemented reasonable security measures and adhered to industry-standard data security practices. The lawsuits also claim that DATS did not provide timely notifications to the affected individuals, who were informed that their sensitive data had been stolen seven months after the data breach. The lawsuits claim the notification delay deprived the plaintiffs and class members of the opportunity to take action to mitigate the harmful effects of the data breach. The lawsuits also assert claims of breach of confidence, breach of implied contract, breach of fiduciary duty, unjust enrichment, and invasion of privacy.

The lawsuits seek class certification, a jury trial, damages, attorneys’ fees, reimbursement of legal costs and expenses, and injunctive relief, including an order from the court compelling DATS to implement measures to improve security.

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Data breaches have been announced by the Georgia-based medical equipment company ERMI, McLeod Physician Associates in South Carolina, and the Centers for Dialysis Care in Ohio. More than 101,000 individuals have been affected by these three incidents.

ERMI LLC, Georgia

ERMI LLC, A Georgia manufacturer of medical equipment for orthopedic patients, has experienced a significant data breach involving unauthorized access to systems containing the electronic protected health information of 74,074 patients. Unauthorized access to its systems was identified on or around August 14, 2025. Assisted by third-party cybersecurity experts, ERMI determined that certain systems had been accessed by an unauthorized third party between February 15, 2025, and August 14, 2025, during which time files containing patient information may have been viewed or acquired.

An extensive manual review of the affected data was completed on or around April 17, 2026, and confirmed that the exposed data included names in combination with one or more of the following: Social Security number, driver’s license number, veteran identification number, passport number, username and password, email address with password and security question, date of birth, date of death, taxpayer/employer identification number, financial account information, payment card information, medical information, and health insurance information. The affected individuals have been notified and informed about the steps that can be taken to reduce the risk of data misuse, and complimentary credit monitoring services have been offered to individuals whose Social Security numbers were impacted.

McLeod Physician Associates Li, South Carolina

McLeod Physician Associates li, a Florence, SC-based healthcare group practice, has recently reported a data breach to the HHS’ Office for Civil Rights involving unauthorized access to the protected health information of up to 19,553 patients. The affected patients started to be notified about the incident on June 4, 2026. According to the substitute breach notice on the McLeod Health website, on March 5, 2026, a suspicious file was found on a Dillon Family Medicine server that was in the process of being decommissioned. An investigation was launched, which determined that an unauthorized party had accessed the server between October 17 and October 18, 2025.

The investigation confirmed that the incident was limited to the single server, and no McLeod Health systems were involved, including the practice’s current electronic medical record system. The server was reviewed and found to contain patient information such as names, dates of birth, Social Security numbers, and information related to patient care, which may have included diagnoses, medications, test results, medical images, treatment information, and health insurance information.

Steps have been taken to prevent similar incidents in the future, and the practice will continue to implement and evaluate enhanced safeguards. McLeod Health has confirmed that the affected server has been decommissioned and is no longer in use.

Centers for Dialysis Care, Ohio

Centers for Dialysis Care in Shaker Heights, Ohio, has identified a data security incident that potentially involved unauthorized access to the protected health information of up to 8,000 individuals.  Suspicious activity was identified within its computer network on or around March 20, 2026. Assisted by third-party cybersecurity experts, Centers for Dialysis Care confirmed on April 11, 2026, that there had been unauthorized access to its network, and files containing personal and protected health information had been accessed.

The personal and protected health information of current and former patients and employees was involved, including names, dates of birth, Social Security numbers, medical and health information, diagnostic and treatment information, health insurance information, and/or tax/financial information. Centers for Dialysis Care said additional security measures have been implemented to reduce the risk of similar incidents in the future.

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