ShinyHunters Threatens to Leak 8.8 TB of One Medical Seniors Patient Data by June 22 Deadline
Amazon-owned primary care provider One Medical faced a data extortion threat from the ShinyHunters group, which claimed to have stolen 8.8 terabytes of data from One Medical Seniors (formerly Iora Health) and threatened to leak it by June 22, 2026, if a ransom was not paid. One Medical had previously disclosed a cybersecurity incident on June 17, 2026, involving unauthorized access to a third-party file storage system containing archived patient information for One Medical Seniors. The unauthorized access occurred between June 8 and June 11, 2026. The potentially compromised information includes demographic and clinical records for some patients.
Onemedical
- Domain
- onemedical.com
- Sector
- Health Care and Social Assistance
- Signals
- 1 linked
Signal context
First seen: Jun 22, 2026
Last updated: Jul 1, 2026
Status: Public signal
Key points
- ShinyHunters threatened to leak 8.8 TB of data from One Medical Seniors by June 22, 2026.
- One Medical disclosed a cybersecurity incident on June 17, 2026.
- Unauthorized access to a third-party file storage system occurred between June 8 and June 11, 2026.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Health Care and Social Assistance
Likely country: Location not provided
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data
- 7 signals in the same sector
- 88 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
One Medical Seniors Data Breach Exposes Patient Information - Claim Depothttps://www.claimdepot.com/data-breach/one-medical-2026Public source from claimdepot.com.
One Medical Under Investigation for Data Breach - Schubert Jonckheer & Kolbehttps://www.classactionlawyers.com/blog/onemedicalPublic source from classactionlawyers.com.
Amazon One Medical Seniors discloses health data breachhttps://www.benefitspro.com/2026/06/22/amazon-one-medical-seniors-discloses-health-data-breach/Public source from benefitspro.com.
One Medical Under Investigation for Data Breach - Schubert Jonckheer & Kolbehttps://www.sjklaw.com/cases/one-medical-data-breach-investigation/Public source from sjklaw.com.
ShinyHunters Data Extortion Group Threatens to Leak 8.8 TB of Stolen One Medical Datahttps://www.hipaajournal.com/one-medical-data-breach/Public source from hipaajournal.com.
SWK Cybersecurity News Recap June 2026https://www.swktech.com/swk-cybersecurity-news-recap-june-2026/Public source from swktech.com.
Data Breach Roundup (June 12 - 18, 2026) - Privacy Guideshttps://www.privacyguides.org/news/2026/06/19/data-breach-roundup-june-12-18-2026/Public source from privacyguides.org.
One Medical Seniors reports data breach of third-party vendor impacting 'limited' number of patients - Fierce Healthcarehttps://www.fiercehealthcare.com/health-tech/one-medical-seniors-reports-data-breach-third-party-file-storage-systemPublic source from fiercehealthcare.com.
Related signals
Grouped by why the signal is relevant.
Huntsville Hospital Health System Notifies Patients of Data Exposure from Cerner Breach
Huntsville Hospital Health System informed patients on June 26, 2026, about a data exposure stemming from a 2025 breach on Cerner's (now Oracle Health) legacy systems. The breach, which occurred on January 22, 2025, exposed personal and medical information. Cerner had notified its healthcare clients, including Huntsville Hospital, on August 12, 2025, but patient notification was delayed at the request of law enforcement.
ACLA Data Breach Exposes Social Security Numbers and Medical Information
Anatomic and Clinical Laboratory Associates P.C. (ACLA) disclosed a data breach involving unauthorized access to its computer network. The breach, discovered in December 2025, exposed personally identifiable information (names, dates of birth, Social Security numbers, taxpayer identification numbers) and protected health information (medical dates of service, diagnoses, medical history) for 69 Massachusetts residents.
Kentucky Mountain Health Alliance Discloses Data Breach Affecting SSNs and Medical Records
Kentucky Mountain Health Alliance Inc., a nonprofit health center, disclosed a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation on June 19, 2026. The incident involved unauthorized access to patient data, some of which was copied. The exposed information included driver's licenses, medical records, and Social Security numbers. The specific method of attack, dates of the incident, or discovery date remain unknown. The organization is offering affected individuals a free, two-year membership to identity monitoring services.
Horizon Family Medical Group Data Breach
Reports emerged on June 18, 2026, of a possible data breach at Horizon Family Medical Group, a medical provider in New York's Hudson Valley region. Threat actor Incransom claimed to have stolen 7 TB of data, including medical information such as diagnoses, prescriptions, treatments, and lab results.
Novo Nordisk Faces Extortion After FulcrumSec Claims 1TB Data Theft
Pharmaceutical company Novo Nordisk is investigating claims by the FulcrumSec cyber extortion group, which asserted it stole over a terabyte of data, including source code, drug information, trial data, and patient/employee details, after spending two months in Novo Nordisk's networks. FulcrumSec claimed to have unsuccessfully demanded $25 million from the company. Novo Nordisk had previously disclosed on June 11, 2026, unauthorized access to a limited number of internal IT systems, including personal data related to clinical trial patients.
Aflac Life Insurance Japan Suffers Cybersecurity Breach Exposing Policyholder Data
Aflac Life Insurance Japan disclosed unauthorized access to its systems between June 15 and June 25, 2026. The breach affected files containing policy details, personal information, and bank account information of approximately 4.38 million customers. The company has suspended affected systems and is investigating the incident with third-party cybersecurity experts.