DaVita Agrees to Pay $15 Million to Settle Data Breach Litigation
In 2025, the kidney dialysis giant DaVita experienced a ransomware attack that involved the theft of sensitive patient data. Some of the affected individuals took legal action in response to the data breach, which they claim has put them at risk of identity theft and fraud. Following extensive negotiations, a $15 million settlement has been proposed to bring the litigation to an end. DaVita operates more than 3,000 kidney dialysis centers in the United States and 14 other countries. On April 12, 2025, the Interlock ransomware group accessed its network, exfiltrated data, and encrypted files, causing temporary disruption to operations. The forensic investigation determined that the electronic protected health information of 2,689,826 individuals was compromised in the incident, including names, contact information, Social Security numbers, health insurance information, clinical information, and tax information. Interlock claimed to have exfiltrated more than 20 terabytes of data and proceeded to leak around 1.5 terabytes of that data on its web data leak site when the ransom was not...
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 39 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...
American Vision Partners Settles Data Breach Litigation for $1.75M
Medical Management Resource Group LLC (MMRC), doing business as American Vision Partners, has agreed to settle class action litigation stemming from a 2024 data breach. MMRC identified suspicious activity within its computer systems on November 14, 2023. The forensic investigation confirmed on or around December 6, 2023, that certain systems had been accessed by an unauthorized third party, and files had been exfiltrated from its network, some of which contained patient information. Data compromised in the incident included names, contact information, dates of birth, medical information, clinical records, and medications. A subset of individuals also had their Social Security numbers compromised. The data breach was reported to the HHS Office for Civil Rights on February 6, 2026, as affecting more than 2.35 million individuals; however, the OCR breach portal was later updated with a slightly smaller figure of 2,264,157 individuals. The class action lawsuit states that approximately 1.6 million Americans were affected by the data breach. Multiple class action lawsuits were filed in...
Azul Vision Settles HIPAA Right of Access Case for $50,000
The Department of Health and Human Services (HHS) Office for Civil Rights (OCR) has announced its 9th financial penalty of the year to resolve an alleged violation of the HIPAA Rules, and its 55th penalty under its HIPAA Right of Access enforcement initiative. Azul Vision Inc. is a California-based provider of optometry and ophthalmology services. OCR launched an investigation in response to a complaint from a patient who alleged that she had not been provided with timely access to her medical records. The complaint was filed with OCR in April 2023, three months after the patient submitted a request to Azul Vision for a copy of her health information. She did not receive the requested records until January 2025 – two years after her request was submitted. The HIPAA Privacy Rule gives patients the right to timely access to their medical records for a reasonable, cost-based fee. When a healthcare provider receives a request from a patient wishing to exercise that right, the healthcare provider has 30 days from receipt of the request to provide the requested records, although under...
Sources for HHS OIG Fraud, Waste, and Abuse Guidelines
The HHS OIG fraud, waste, and abuse guidelines are intended to support healthcare organizations in their efforts to self-monitor compliance with all applicable laws and program requirements. The guidelines can be found in many different sources, including guidance documents, advisory opinions, online training programs, and the HHS OIG YouTube channel. The healthcare industry is one of the most highly regulated industries in the U.S. Federal rules and regulations exist that govern patient safety (i.e., PSQIA), data security (i.e., HIPAA), and the physical environment (i.e., OSHA). In addition, each state has its own requirements for licensing healthcare organizations and healthcare practitioners. Failure to comply with these rules, regulations, and requirements can result in fines, facility closures, and/or loss of license. However, the most substantial penalties for non-compliance are often reserved for offenses against the federal government – particularly offenses that relate to fraud, waste, and abuse against a healthcare program operated by the Department of Health and Human...



