Major Healthcare Data Breaches and Legal Fallout in the United States
Continuum Health Alliance, a health management provider based in New Jersey, agreed to settle a consolidated class action lawsuit following a data breach in October 2023 that compromised the personal information of over 377,000 patients from its client, Consensus Medical Group. The breach involved unauthorized access to sensitive data, including names and Social Security numbers, and led to multiple legal claims consolidated in New Jersey court. The settlement was reached after mediation, with all parties agreeing it was preferable to continued litigation, though the defendants denied liability.
Separately, Denton County MHMR Center in Texas reported a significant data breach affecting nearly 109,000 patients, with unauthorized access occurring in December 2024. The compromised data included a wide range of protected health information, and affected individuals were notified and offered credit monitoring services. Additionally, Conduent, a major medical services provider, disclosed that a 2024 hacking incident impacted nearly 14.8 million Texans, a substantial increase from previous estimates, highlighting the ongoing challenges in accurately assessing the scope of large-scale healthcare data breaches and the risks posed by third-party vendors.
Timeline
Mar 16, 2026
Final fairness hearing scheduled for Continuum settlement
A final fairness hearing for the Continuum Health Alliance data breach settlement is scheduled for March 16, 2026. The hearing will determine whether the proposed class action settlement receives final court approval.
Mar 2, 2026
Continuum settlement claims deadline set
The proposed Continuum Health Alliance settlement set March 2, 2026 as the deadline for class members to submit claims. Eligible individuals can seek compensation and monitoring benefits under the agreement.
Jan 6, 2026
Continuum agrees to settle class action over 2023 breach
Continuum Health Alliance agreed to settle consolidated class action litigation over its October 2023 data breach. The proposed settlement provides reimbursement for out-of-pocket losses, a cash payment option, complimentary medical data monitoring, and commitments to improve security practices.
Jan 6, 2026
Conduent updates Texas filing to 14.79 million affected Texans
By January 2026, Conduent updated its breach report to Texas regulators to show 14,791,500 affected individuals in Texas alone, up from an earlier nationwide estimate of 10.5 million. The revised figure indicated the total U.S. impact was likely substantially higher.
Dec 1, 2025
Denton County begins notifying 109,000 affected patients
About a year after the December 2024 incident, Denton County MHMR Center began sending notification letters to nearly 109,000 affected current and former patients. The organization offered credit monitoring and identity protection services and said it had no evidence of misuse of the data.
Nov 5, 2025
Denton County reports breach to HHS OCR
Denton County MHMR Center reported its data breach to the U.S. Department of Health and Human Services' Office for Civil Rights on November 5, 2025. State attorneys general were also notified.
Oct 1, 2025
Conduent begins mailing breach notifications
Conduent started sending notification letters in October 2025 to affected individuals on behalf of its clients. The company also established a call center and projected notification-related costs of about $25 million by the first quarter of 2026.
Jan 6, 2025
SafePay claims responsibility for Conduent hack
The SafePay ransomware group publicly claimed responsibility for the Conduent breach and threatened to publish 8.5 terabytes of allegedly stolen data. Conduent was later no longer listed on the group's leak site.
Jan 1, 2025
Conduent detects 2024 hacking incident
Conduent detected the unauthorized access in January 2025 after attackers had exfiltrated files containing personal and health-related information. The company later tied the incident to a broad breach affecting multiple healthcare-sector clients.
Dec 24, 2024
Denton County MHMR Center network accessed by unauthorized party
Between December 24 and December 25, 2024, an unauthorized third party accessed Denton County MHMR Center's computer network. The breach exposed personal, medical, and biometric information of nearly 109,000 current and former patients.
Oct 1, 2024
Conduent intrusion begins in limited IT environment
Unauthorized access to Conduent Business Services' systems began in October 2024, leading to the exfiltration of files from a limited portion of its IT environment. The incident affected healthcare and government clients that relied on Conduent's back-office services.
Apr 1, 2024
Continuum notifies affected individuals of 2023 breach
Affected individuals were notified in April 2024 about the Continuum Health Alliance breach involving Consensus Medical Group patient data. The notifications informed patients that sensitive information had been accessed without authorization.
Oct 1, 2023
Continuum Health Alliance breach compromises 377,000+ patients
In October 2023, Continuum Health Alliance suffered a data breach affecting more than 377,000 patients of Consensus Medical Group. Exposed information included sensitive personal data such as names and Social Security numbers.
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Major Healthcare Data Breaches and Impacts in 2025
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