HIPAA Breach News

Texas Hearing Institute Ransomware Attack Affects 30,000 Patients

Texas Hearing Institute has announced a cybersecurity incident involving the protected health information of almost 30,000 patients. Data breaches have also recently been announced by Family Partnerships of Central Florida and SportsMed Physical Therapy.

Texas Hearing Institute

The Center for Hearing and Speech, doing business as Texas Hearing Institute, a provider of pediatric audiology services, has notified 29,744 current and former patients about a security incident identified on March 20, 2026. Suspicious network activity was identified, and immediate action was taken to lock down and secure its environment. Assisted by third-party cybersecurity specialists, Texas Hearing Institute determined on or around April 22, 2026, that certain parts of its network were accessed by an unauthorized third party, including files containing patient information.

The list of the affected individuals was finalized on June 19, 2026, and notification letters were mailed on June 26, 2026. Information potentially compromised in the incident includes names, personal identifiers, Social Security numbers, diagnosis and treatment information, and financial account information. The affected individuals have been offered complimentary single-bureau credit score, credit record, and credit monitoring services.

While not mentioned in the breach notification letters, this appears to have been a ransomware attack. The Interlock ransomware group claimed responsibility and states on its data leak site that 540 GB of data was copied in the attack. Interlock is a ransomware-as-a-service group that steals data and encrypts files, demanding payment for the decryption keys and to prevent the publication of stolen data. The group proceeded to leak the stolen data, indicating the ransom was not paid. As such, the affected individuals are strongly advised to take advantage of the credit monitoring services being offered.

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Family Partnerships of Central Florida

Community Based Care of Brevard, doing business as Family Partnerships of Central Florida, a community-based care lead agency contracted by the Florida Department of Children and Families, has notified 8,151 individuals that some of their protected health information has been leaked online. The MoneyMessage threat group claimed responsibility for the attack.

Family Partnerships of Central Florida launched an investigation when it learned about the data leak to determine the nature and scope of the incident. The investigation confirmed that a threat actor had access to its network between December 4, 2025, and January 2, 2026, and exfiltrated files containing names, birth dates, Social Security numbers, driver’s license numbers, state IDs, financial account information, and personal health information.

Since data has been leaked online, the affected individuals have been advised to remain vigilant against identity theft and fraud. The notification letters include information on how they can protect against data misuse. The substitute breach notice does not mention complimentary credit monitoring or identity theft protection services. Family Partnerships of Central Florida said it is reviewing its policies, procedures, and processes related to the storage and access of sensitive information to reduce the risk of similar incidents in the future.

SportsMed PT, New Jersey

SportsMed Physical Therapy in Glen Rock, New Jersey, has identified unauthorized access to an employee’s email account. Suspicious activity was identified within the account on May 8, 2026. The investigation confirmed that the breach was limited to a single email account, which has now been secured. The account was reviewed, and while the investigation into the incident is ongoing, SportsMed Physical Therapy said the exposed data included names in combination with one or more of the following: date of service, provider name, diagnosis information, treatment information, and/or health insurance information.

No actual or attempted misuse of the exposed data has been identified; however, patients have been advised to remain vigilant against identity theft and fraud. The breach was recently reported to the HHS’ Office for Civil Rights as affecting 3,400 individuals.

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Aesto Health Data Breach Affects 9.5 Million Patients

On August 14, 2026, we reported on a data breach at the Birmingham, Alabama-based healthcare technology company Aesto Health. While it was clear when we reported on the incident that it was a major breach, the number of individuals affected was unclear.  We now know that at least 30 of the company’s healthcare provider clients were affected, as detailed in the list at the bottom of this page.

The data breach has now been reported to the HHS’ Office for Civil Rights as involving the electronic protected health information of 9,540,683 individuals, which makes it the second-largest confirmed healthcare data breach of the year to date, behind the 15 million record data breach at DentaQuest.

August 14, 2026: Aesto Health Data Security Incident Affects Multiple Healthcare Provider Clients

A data breach at Aesto Health, a Birmingham, Alabama-based healthcare technology company, has affected several of its healthcare provider clients. Aesto Health provides secure data migration, legacy data archiving, and electronic health record (EHR) exchanges for medical practices and healthcare enterprises. According to its announcement, a security incident was identified on or around December 18, 2025, involving part of its Amazon Web Services (AWS) infrastructure. Third-party cybersecurity experts were engaged to investigate the incident and confirmed that its AWS environment was accessed by an unauthorized third party between December 2 and December 18, 2025.

The affected parts of its infrastructure were reviewed and confirmed to contain personally identifiable information and protected health information, including full names, Social Security numbers, partial dates of birth, driver’s license numbers, state identification numbers, financial account numbers, taxpayer identification numbers, health records, medical histories, claims/billing information, and health insurance information. Aesto Health said it had taken many precautions to safeguard the sensitive data in its possession and continually evaluates and modifies its security practices. Credit monitoring and identity theft protection services have been made available.

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The incident is known to have affected more than two dozen of its healthcare provider clients. They started to be notified on June 26, 2026. Whenever there is a data breach at a business associate of a HIPAA-covered entity, the affected covered entity is ultimately responsible for ensuring that the requirements of the HIPAA Breach Notification Rule are met. The covered entity may delegate the responsibility for issuing notification letters to the breached business associate, or it may choose to issue notification letters itself. As a result, it is often difficult to determine how many individuals have been affected by a business associate data breach, although in this case the breach has certainly affected hundreds of thousands of patients.

Based on state Attorney General breach listings, at least 80,622 South Carolina residents, 37,253 Washington residents, 731 Oregon residents, and 91 Vermont residents have been affected; however, many of the affected clients have chosen to report the breach themselves. In some cases, clients report that tens of thousands of their patients have been affected. For instance, Village Practice Management has confirmed that more than 25,000 of its patients have been affected, and Everside Health informed the Washington Attorney General that approximately 22,000 individuals have been affected in Washington alone.

The healthcare providers known to have been affected are detailed in the table below, although others may also have been affected.

  • Edwards County Medical Center
  • Effingham Obstetrics & Gynecology Associates, PLLC
  • Ellenville Regional Hospital
  • Everside Health
  • Gila Health Resources, LLC
  • Graham County Hospital
  • Greenwood County Hospital
  • Henry County Hospital
  • Little River Memorial Hospital
  • Lone Star Community Health Center
  • Main Street Medical Services, PLLC
  • Marana Health
  • Mid-South OB-GYN, PLLC
  • Midtown Community Health Center
  • Missoula Community Health Services Inc., dba Mineral Community Hospital
  • Monroe Health Center
  • Murfreesboro Medical Clinic
  • My Doctor, LLC
  • Nebraska Orthopedic Center, P.C
  • Park West Health Systems, Inc.
  • Quincy Valley Medical Center
  • Rural Health Resources of Jackson County Inc. d/b/a Holton Community Hospital
  • Shenandoah Valley Medical System Inc.
  • Stanislaus County Health Services Agency
  • Sterling Health Solutions
  • Texas Spine Consultants, LLP
  • Together Women’s Health Medical Group of Alabama, PC
  • Together Women’s Health Medical Group, PC
  • Village Practice Management (VillageMD; Village Medical)
  • Women’s Health Associates, Inc.

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Data Breaches Announced by Five HIPAA-Regulated Entities

Data breaches have recently been announced by the Women’s Center for Radiology in Florida, Optalis Management Solutions in Michigan, the Association for Neurologically Impaired Brain Injured in New York, the Cardiovascular Institute of New England in Rhode Island, and the Kubota Tractor Corporation in Texas.

Women’s Center for Radiology, Florida

Women’s Center for Radiology, a Florida-based women’s radiology practice with two centers in Orlando, has notified 66,422 patients about a data security incident identified on April 29, 2026. Assisted by third-party cybersecurity specialists, the Women’s Center for Radiology determined that an unauthorized third party had access to its network between April 26, 2026, and April 28, 2026, and accessed or downloaded files containing patient information.

After securing its network, the files were reviewed and found to contain patient information such as names, addresses, dates of birth, contact information, diagnosis/condition information, lab test results, treating/referring physician names, medical record numbers, driver’s license numbers, and health insurance information. Data privacy and security policies, procedures, and processes are being reviewed to reduce the likelihood of similar incidents in the future. While data misuse has not been identified, as a precaution, the affected individuals have been offered complimentary credit monitoring and identity theft protection services.

Optalis Management Solutions, Michigan

Optalis Management Solutions, a Michigan-based management company that operates Optalis Health & Rehabilitation’s skilled nursing, rehabilitation, assisted living, and independent living facilities, has notified 13,723 individuals about a breach of some of their protected health information. Suspicious activity was identified within its computer network, and the investigation confirmed unauthorized access occurred between April 14, 2025, and April 19, 2025. After a breach was confirmed by third-party cybersecurity specialists, a document review was initiated to determine the individuals and data types involved. That process concluded on June 10, 2026.

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Data potentially viewed or obtained in the incident included full names in combination with one or more of the following: Social Security number, driver’s license number/state ID number, credit/debit card information, financial account information, diagnosis and treatment information, and/or health insurance policy number. Notifications were mailed to the affected individuals on June 29, 2026, and individuals whose Social Security numbers were involved have been offered complimentary credit monitoring services.

Kubota Tractor Corporation, Texas

Kubota Tractor Corporation, a Japanese company that makes agricultural and construction equipment, has recently confirmed that hackers gained access to certain parts of its network earlier this year. The forensic investigation determined that its network was first compromised on March 16, 2026, and the hackers maintained access for more than a month. The unauthorized access was detected and blocked on April 20, 2026. The company, which has its U.S. HQ in Grapevine, Texas, determined that this was a reportable breach under HIPAA, as the incident involved unauthorized access to the protected health information of beneficiaries of its Employee Welfare Benefit Plan.

Employee data potentially compromised in the incident includes names in combination with one or more of the following: Social Security number, date of birth, taxpayer identification number, driver’s license or other government-issued identification number, financial account information for direct deposit, payment card information for corporate cards, benefit enrollment information, and limited claims information. For dependents of employees, the exposed data may have included names in combination with one or more of the following: Social Security number, date of birth, benefit enrollment information, and limited claims information. Notification letters were mailed to the 5,891 affected individuals on June 30, 2026, and complimentary identity monitoring services have been offered.

Cardiovascular Institute of New England, Rhode Island

The Cardiovascular Institute of New England, a heart care practice with seven locations in Rhode Island, started mailing notification letters to patients on July 28, 2026, about a data security incident identified on or around February 12, 2026. Suspicious activity was identified within its email environment, and the investigation confirmed unauthorized email access, which may have resulted in patient data being viewed or acquired.

The review of the affected email accounts was completed on or around July 14, 2026, when the practice learned that names, phone numbers, dates of birth, financial account numbers, medical information, medical diagnoses, treatment information, treatment locations, clinical information, prescription information, and medical insurance provider information had been exposed. No evidence has been found to suggest that any patient data has been misused.

Email security policies, procedures, and security measures are being reviewed, and steps are being taken to reduce the risk of similar incidents in the future. As a precaution against data misuse, the affected individuals have been offered complimentary credit monitoring and identity theft protection services. The incident is not yet shown on the HHS’ Office for Civil Rights breach portal, and the number of affected individuals has yet to be publicly disclosed.

The Association for Neurologically Impaired Brain Injured, New York

The Association for Neurologically Impaired Brain Injured (ANIBIC), a New York-based not-for-profit agency that provides services to individuals with developmental and neurological disabilities, has recently informed the HHS’ Office for Civil Rights about a breach of the protected health information of 1,918 individuals. According to its substitute breach notice, suspicious activity was identified within its computer network on or around March 8, 2026. The investigation determined that an unauthorized third party accessed files containing program member information between March 7, 2026, and March 8, 2026.

The compromised information included names, contact information, Social Security numbers, dates of birth, health insurance information, and service details such as diagnoses, treatment information, and prescriptions. Notification letters were mailed to the affected individuals on July 17, 2026, and complimentary identity monitoring services have been offered to individuals whose Social Security numbers were involved.

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Strict Rules Set for Change Healthcare Dataset in Multidistrict Litigation

The volume and sensitive nature of the data stolen from Change Healthcare in its 2024 ransomware attack have led to strict rules being established for data handling by attorneys involved in a consolidated lawsuit against United Health Group (UHG), Change Healthcare, Optum, and other UHG subsidiaries. The rules will help to ensure that the dataset is protected at all times.

The ransomware attack resulted in the theft of approximately 6 terabytes of data, including files containing the electronic protected health information of an estimated 192,700,000 individuals, including names, contact information, Social Security numbers, driver’s license numbers, insurance information, and medical information. UHG paid the BlackCat ransomware group a $22 million ransom to delete the data; however, the operators pocketed the cash and didn’t pay the affiliate, who had retained a copy. The affiliate joined another ransom group, RansomHub, which attempted to extort UHG a second time.

This was the largest-ever healthcare data breach by some distance, and triggered dozens of lawsuits, including class action lawsuits filed by patients who had their data stolen and healthcare providers seeking compensation for the financial and operational disruptions they experienced. On June 7, 2024, the Judicial Panel on Multidistrict Litigation consolidated an initial 49 lawsuits, including 19 consumer complaints and 30 healthcare provider complaints, although the number of lawsuits included in the action has grown to more than 150. The consolidated lawsuit – In Re: Change Healthcare, Inc. Customer Data Security Breach Litigation – was centralized in the U.S. District Court for the District of Minnesota.

The stolen data files are designated discovery material, and due to the sensitive nature of the data and the volume of records, heightened security practices are required to protect against unauthorized access and data theft. The rules concerning the stolen dataset were approved by the plaintiffs’ attorneys and were verified by a cybersecurity expert as being sufficient to ensure the security of the data before being sent to the judge for approval. The stipulated protective order has recently been approved by Magistrate Judge Dulce Foster.

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UHG will provide a single copy of the data on an encrypted hard drive built to a federal security standard, and must provide the key to decrypt the data separately, to ensure that in the event of loss or theft of the drive, the data cannot be accessed. The plaintiffs’ attorneys are required to encrypt the data again once they have received the hard drive, using industry-standard encryption. No copies may be made of the data, and the data cannot be saved to the shared file library used by all individuals involved in the case. The plaintiffs’ attorneys are prohibited from using the dataset to identify or locate potential class members.

The hard drive must only be used on computers that are air-gapped – disconnected from the Internet and all networks, with no Wi-Fi or Bluetooth connectivity. The computers must be newly provisioned and updated prior to use, and when the computers are used, no cables, phones, or storage devices are permitted nearby.  When data access is required, only small samples may be accessed, and no more than 25 people are permitted access at any one time. All samples must be encrypted with strong encryption and a complex password set of at least 16 characters.

An audit trail must be maintained, including a detailed chain of custody of the drive and data, and the log must be provided to UHG on request. When the case ends, or if the plaintiffs’ claims are thrown out, the data must be securely destroyed within 30 days, using a government-approved data wiping method – NIST SP 800-88 – or the hard drive must be physically destroyed, and a detailed certificate of destruction obtained under penalty of perjury.

In the event of a security incident or unauthorized data access or data sharing, UHG must be notified within 48 hours. Should it turn out to be a genuine security incident, both sides are required to engage an external digital forensic firm, and if the plaintiffs are found to be at fault, they must pay the full investigation costs.

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Data Breaches Announced by Five Small Healthcare Organizations

Five small healthcare organizations have recently announced that they have experienced security incidents exposing patient data: Family Medical Associates of Raleigh; Arkansas Oral & Maxillofacial Surgeons; Alpine Agency of the Midlands; Princeton Family Eye Care; and James C. Standring, DDS.

Family Medical Associates of Raleigh, North Carolina

Family Medical Associates of Raleigh, a multi-provider family medical practice in Raleigh, North Carolina, identified a potential cybersecurity incident on May 7, 2026, and activated its incident response protocol. Steps were immediately taken to investigate, contain, and remediate the incident; law enforcement was notified, and third-party cybersecurity professionals were engaged. The investigation and data review are ongoing; however, it has been confirmed that certain systems were intermittently accessed by an unauthorized third party between April 18, 2026, and April 20, 2026, who potentially downloaded internal data, including files containing patients’ protected health information.

The data review has not yet been completed, but the types of data exposed in the incident include names, demographic information, contact information, medical and treatment information, health insurance information, financial/payment-related information, government-issued ID numbers, and other data related to the medical services provided. Family Medical Associates of Raleigh said it is unaware of any actual or attempted misuse of patient data as a result of the incident; however, patients have been advised to remain vigilant against identity theft and fraud by monitoring their accounts, free credit reports, and explanation of benefits statements.

Since the investigation has yet to conclude, the number of affected individuals is currently unknown. While the name of the threat actor behind the attack was not disclosed, the Genesis ransomware group claimed responsibility for the attack.

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Arkansas Oral & Maxillofacial Surgeons, Arkansas

Arkansas Oral & Maxillofacial Surgeons, a Hot Springs, Arkansas-based provider of oral surgery, dental implants, and other dental and cosmetic dentistry services, has announced a data security incident that was first identified on April 7, 2026.

An investigation was initiated, and on June 2, 2026, it was confirmed that an unauthorized third party had accessed its network and exfiltrated files containing patient information. The files have been reviewed and were found to contain information such as names, contact information, birth dates, medical record numbers, government identification numbers (including Social Security numbers), diagnoses, treatment records, health insurance information, prescription histories, and payment information.

The affected individuals have been notified by mail and provided with recommendations on how to protect themselves against data misuse. Based on the substitute breach notice on the Arkansas Oral & Maxillofacial Surgeons website, credit monitoring and identity theft protection services do not appear to have been offered. The incident is not yet shown on the HHS’ Office for Civil Rights breach portal, so it is unclear how many patients have been affected.

This appears to have been a data theft and extortion attempt. The PEAR threat group claimed responsibility. PEAR does not encrypt files, as the group engages in data theft and extortion, threatening to publish stolen data if the ransom is not paid.

Alpine Agency of the Midlands, South Carolina

Alpine Agency of the Midlands, LLC, a small, independent health and benefits insurance company based in Columbia, South Carolina, has recently disclosed a security incident involving unauthorized access to its email system. Alpine provides services to insurance carriers, employers, and health plans, and is provided with certain health data by its clients in connection with the services it provides.

Unusual activity was identified within an employee email account in November 2025. The account was secured, and an investigation was launched to determine the nature and scope of the unauthorized activity. The investigation confirmed that the incident affected a single email account, which was first accessed by an unauthorized third party on October 28, 2026. Emails and associated attachments may have been copied by the attacker.

The account was reviewed and found to contain first and last names, addresses, dates of birth, health insurance information, and limited Social Security numbers. Notifications will be mailed to the affected individuals when the review is completed. In the meantime, the breach has been reported to the HHS’ Office for Civil Rights as affecting at least 500 individuals. The total will be updated when the file review is concluded.

Princeton Family Eye Care, Texas

Princeton Family Eye Care, a small optometry practice in Princeton, Texas, has notified certain patients about a recent data breach. On May 4, 2026, suspicious activity was identified within its email environment. Assisted by third-party cybersecurity experts, the practice secured its email systems, investigated the activity, and confirmed that a company email account had been accessed by an unauthorized third party.

A data review firm was engaged to determine the types of data involved and the individuals affected, and that process has recently been completed. The data exposed in the incident varied from individual to individual and may have included names in combination with one or more of the following: date of birth, contact information, government identification numbers (such as a driver’s license, passport, or Social Security number), and limited medical information (such as treatment details, health insurance records, or a medical record number).

No misuse of the affected information has been identified; however, the affected patients have been advised to remain vigilant against misuse of their information. The breach was reported to the Texas Attorney General as involving the data of 933 Texas residents.

James C. Standring, DDS, California

James C. Standring, DDS, a dental practice in Crescent City, California, has notified 6,658 patients about a data security incident involving unauthorized access to its computer systems. While the data breach was reported to the HHS’ Office for Civil Rights on July 17, 2026, this appears to have been a historical data breach.

According to the breach explanation on the dental practice website, unauthorized access to certain computer systems was first identified on September 2, 2024. Assisted by third-party cybersecurity specialists, the practice determined that the incident resulted in the exposure of the data of current and former patients, including names, addresses, email addresses, Social Security numbers, driver’s license/state ID numbers, medical information, health insurance information, financial account/payment card information, and other personal information maintained by the practice.

No misuse of the affected data has been identified; however, patients have been advised to remain vigilant against identity theft and fraud. No explanation was provided about why it took 22 months from the date of discovery to issue notification letters.

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Data Breaches Reported by Sunshine Health; Health Payment Systems

A vishing attack on Sunshine Health, a Florida-based Medicaid and health insurance agency, involved the theft of the PHI of more than 41,000 individuals. Health Payment Systems, a Wisconsin healthcare billing company, has experienced an email security incident affecting more than 8,000 patients.

Sunshine Health

Sunshine Health, a Broward County, Florida-based Medicaid and health insurance agency, has recently discovered a vishing incident involving the impermissible disclosure of the protected health information of 41,569 individuals.

Vishing, or voice phishing, takes place over the phone and involves tricking an individual into providing the attacker with access to their device or sensitive information. In this case, an employee was tricked into sharing a limited number of health plan files by a caller pretending to be a trusted individual. The incident occurred on May 6, 2026, and was identified the same day. An investigation was launched, and the shared files were reviewed and were found to include names, dates of birth, medical information/histories, and health plan coverage information.

Sunshine Health said it has not found any evidence to suggest that the disclosed information has been misused at this time; however, to protect against data misuse, the affected individuals have been offered complimentary credit monitoring and identity theft protection services. Additional training has been provided to the workforce to raise awareness of the techniques that threat actors may use to gain access to internal systems and sensitive data.

Health Payment Systems

Health Payment Systems, Inc., a Wisconsin-based healthcare technology and billing software company, has notified the HHS’ Office for Civil Rights about a breach of the protected health information of 9,380 individuals.

On or around June 27, 2025, the company identified suspicious activity within its email environment. Immediate action was taken to secure the accounts and prevent further unauthorized access, and an investigation was launched to determine the nature and scope of the incident. Assisted by third-party cybersecurity specialists, Health Payment Systems confirmed that certain employee email accounts had been accessed by an unauthorized third party between June 24, 2025, and June 27, 2025, and certain emails were copied.

It has taken more than a year to investigate the incident and review the affected data. The HHS’ Office for Civil Rights was informed about the data breach on July 10, 2026, and notification letters are now being mailed to the affected individuals. Data exposed in the incident included names, addresses, birth dates, IDs, subscription IDs, and subscriber person IDs. For certain individuals, medical information, health insurance information, and Social Security numbers were also involved.

The affected individuals have been offered complimentary credit monitoring and identity theft protection services, and have been advised to monitor their explanation of benefits statements and account statements for signs of data misuse. Health Payment Systems said it has strengthened its security policies and has implemented additional cybersecurity measures to prevent similar incidents in the future.

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Data Breaches Announced by Loma Linda University Health & UCLA Health

Data security incidents have recently been announced by Loma Linda University Health and UCLA Health.

Loma Linda University Health

Loma Linda University Health has recently announced a data breach involving an external AI platform. The incident involved patient information from an Institutional Review Board-approved research study. During the course of the study, A dataset including limited patient information was inadvertently uploaded to an AI platform.

When the incident was identified, an investigation was launched to determine the extent of data exposure. The investigation determined that the dataset included medical record numbers, dates of birth, and limited clinical information related to orthopedic care.  The breach did not include complete treatment records, nor Social Security numbers, financial information, or insurance information.

The academic medical center said it takes the privacy and security of patient information seriously and is reviewing its policies, procedures, and workforce training on the use of external technologies such as AI platforms. The number of affected individuals has yet to be publicly disclosed.

UCLA Health

UCLA Health is notifying an unspecified number of patients about an improper disclosure of some of their personal and protected health information. According to the breach notice provided to the California Attorney General, UCLA Health determined on July 2, 2026, that patient information was accessed and disclosed to an outside healthcare provider in a manner inconsistent with its HIPAA policies.

The notice indicates that the disclosures occurred between December 27, 2024, and April 21, 2026. The investigation confirmed that the information involved was limited to names, dates of birth, health insurance information, and clinical information, such as referral orders. For a limited number of individuals, the last four digits of their Social Security numbers were also included.

UCLA Health said it has implemented additional measures to prevent similar breaches in the future, including enhanced system controls and increased monitoring. UCLA Health said it is unaware of any actual or attempted misuse of patient data as a result of the incident.

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Brown Health Medical Group-MA Data Breach Affects 312,000 Individuals

Lifespan Physicians Group of Massachusetts, doing business as Brown Health Medical Group-MA, has confirmed that the protected health information of almost 312,000 individuals was potentially compromised in a December 2025 security incident.

There is currently no substitute breach notice on the medical group’s website; however, the data breach was reported to the Vermont and Massachusetts Attorneys General. The breach notices issued to those regulators explain that unauthorized activity was identified in a legacy file server at the practice on December 16, 2025. The server was isolated, and an investigation was launched to determine the nature and scope of the unauthorized activity. The forensic investigation confirmed that the breach was limited to the file server, which was accessed by an unauthorized third party between December 15 and December 16, 2026. The electronic medical record system was not involved.

The server was reviewed to determine the exact types of information stored on the server. The file review determined on June 22, 2026, that the following categories of data were impacted – names, dates of birth, contact information, Social Security numbers, driver’s license numbers or other government-issued identification numbers, credit or debit card numbers, financial account information, and personnel and human resources records. The latter may have included information such as compensation or payroll information, licensure or credentialing information, and medical or disability-related records.

Steps have been taken to improve security to prevent similar incidents in the future, including implementing enhanced technical safeguards. The affected individuals have been offered complimentary credit monitoring and identity theft protection services for 24 months. The incident affected 290,357 Massachusetts residents and 86 Vermont residents. According to the HHS’ Office for Civil Rights data breach portal, the protected health information of 311,760 individuals was potentially stolen in the incident.

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AmGen Announces Cyberattack and Data Breach Involving Patient Data

Amgen Inc., a Thousand Oaks, CA-based biopharmaceutical company that develops and manufactures pharmaceutical products for oncological, hematological, and cardiovascular diseases, has recently disclosed a cybersecurity incident involving unauthorized access to third-party-hosted cloud storage systems.

In a Form 8-K filing with the U.S. Securities and Exchange Commission (SEC), Amgen explained that it determined in July 2026 that hackers gained access to certain cloud systems. Amgen immediately implemented its cybersecurity response plan, deployed containment measures, and engaged third-party digital forensics experts to determine the nature and scope of the unauthorized activity.

The investigation determined that proprietary data, patients’ protected health information, and other data had been exfiltrated from the cloud environment, and on July 29, 2026, determined that the incident was material and informed the SEC. Amgen said it does not believe the incident is reasonably likely to have an impact on its financial position, nor any of its products, manufacturing operations, financial reporting systems, or its ability to meet patient needs.

Amgen is in the process of assessing the extent to which patient information, confidential business information, intellectual property, research and development, and other information was exfiltrated in the attack and will be unable to accurately determine the impact to the company until those processes have concluded. At present, the exact nature of the attack, such as how the cloud systems were compromised, has yet to be made public. Amgen said it takes the protection of its systems and data very seriously and is in the process of determining the applicable regulatory and legal notification requirements, including its responsibilities under HIPAA.

As of the date of the SEC filing, the threat group behind the attack is unclear. Several pharmaceutical, biotechnology, and medtech firms have fallen victim to cyberattacks in recent months, including Novo Nordisk, Medtronic, Stryker, Abbott Laboratories, West Pharmaceutical Services, and Brainyx AI. The attacks have been conducted by several threat actors, including the Iran-linked hacktivist group Handala and the data theft and extortion groups FulcrumSec and ShinyHunters. The latter was the subject of a recent cybersecurity alert by Health-ISAC after a string of successful hacks on the healthcare sector.

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