AI Governance
Data Centers
Drones
Climate
Privacy
2026 Maine Senate
Bob Dylan
Last Update: 10/27/2026 at 6:00 AM EST
Healthcare Data Breaches
Coverage from Medical Daily, Data Breach Rights, and others
Healthcare data breaches affect organizations ranging from dental benefits administrators to medical and radiology providers, and can expose both identifying details and sensitive health or insurance records.
Understanding an incident involves more than how access occurred: response and notification duties, vendor security, and the scope of exposed data all matter. When identity information is combined with health or benefits records, affected people may face risks such as medical identity theft, fraud, and phishing.
Looking Back
599 Day Timeline
Jan '25
Apr '25
Jul '25
Oct '25
Feb '26
May '26
Aug '26
All Articles77 articles
Important
DentaQuest disclosed unauthorized access to its network affecting at least 15 million people nationwide after an intrusion occurred from May 17 to May 20.
8/14/2026 • Data Breaches & Exposure Events • General
DentaQuest notified Washington regulators and affected individuals in July 2026 after unauthorized system access potentially exposed dental insurance members' personal and health information.
8/28/2026 • Data Breaches & Exposure Events • General
DentaQuest notified 15 million people in the United States after a May intrusion potentially exposed health and identity information through compromised company systems.
7/31/2026 • Data Breaches & Exposure Events • General
DentaQuest notified more than 23 million people in 2026 after unauthorized access exposed Medicaid and children-related health and identity data.
7/27/2026 • Data Breaches & Exposure Events • General
DentaQuest disclosed a May 2026 breach discovered May 20, exposing health and identity data and prompting 24 months of credit monitoring for affected members.
7/27/2026 • Data Breaches & Exposure Events • General
DentaQuest disclosed a May 2026 cyber intrusion affecting about 23 million people in Medicaid dental programs, triggering HIPAA breach notification to HHS OCR and affected individuals.
7/27/2026 • Data Breaches & Exposure Events • General
Cure Dental reported a June 25 cyber incident in Belton, Texas, potentially exposing personal identifiers for up to 878 patients.
7/24/2026 • Data Breaches & Exposure Events • General
Qilin claimed on January 2, 2026, that ransomware operators breached Sai Oral Surgery and obtained patient information from the Florida practice.
7/16/2026 • Data Breaches & Exposure Events • General
DentaQuest reported a May 2026 unauthorized-access incident that may have exposed health insurance and Medicaid identifiers affecting about 2.6 million people in the USA.
6/10/2026 • Data Breaches & Exposure Events • General
ShinyHunters breached DentaQuest on a ransom timeline and publicly posted data for 2.6 million Medicaid and Medicare Advantage accounts after June 2 confirmation.
6/9/2026 • Data Breaches & Exposure Events • General
DentaQuest disclosed a cybersecurity incident while ShinyHunters claimed extortion and publication of leaked data affecting about 2.6 million accounts.
6/9/2026 • Data Breaches & Exposure Events • General
ShinyHunters published 234 GB of stolen DentaQuest files, and DentaQuest confirmed June 2 unauthorized access affecting 2.6 million Medicaid and Medicare Advantage beneficiaries.
6/8/2026 • Data Breaches & Exposure Events • General
ShinyHunters claimed a May 2026 breach of DentaQuest cloud systems, exposing PII and PHI for about 2.6 million people and prompting notification compliance concerns.
6/7/2026 • Data Breaches & Exposure Events • General
ShinyHunters leaked a 234 GB archive allegedly stolen from DentaQuest in the United States, potentially exposing data for about 2.6 million individuals.
6/7/2026 • Data Breaches & Exposure Events • General
BlackFog reported ransomware-group claims against ViaQuest in Ohio during early 2026, potentially exposing health and disability data and implicating Ohio and HIPAA breach-notification timelines.
6/3/2026 • Data Breaches & Exposure Events • General
Radiology Associates of Richmond disclosed a 266,000-person breach after unauthorized acquisition of PHI and financial data around July 25, 2025, with notifications beginning May 21, 2026.
5/26/2026 • Data Breaches & Exposure Events • General
Federman & Sherwood investigates a Florida Physician Specialists network intrusion reported to the Maine Attorney General, alleging possible exposure of Social Security, financial, and medical data.
4/28/2026 • Data Breaches & Exposure Events • General
DentaQuest notified affected beneficiaries starting July 17 after ShinyHunters claimed theft of over 234GB of sensitive health and identity data.
7/25/2026 • Data Breaches & Exposure Events • General
DentaQuest notified millions in the United States after a May 17 to May 20 breach exposed HIPAA-covered identifiers and dental health data.
7/27/2026 • Data Breaches & Exposure Events • General
Cure Dental in Belton, Texas disclosed in 2026 that a 2025 ransomware attack potentially exposed 878 patients' identity data, including Social Security numbers.
7/24/2026 • Data Breaches & Exposure Events • General
South Florida Injury Centers Inc. disclosed a 2026 data breach exposing Social Security numbers and medical records, reported to HHS on May 22, 2026.
7/15/2026 • Data Breaches & Exposure Events • General
Florida Physician Specialists disclosed an April 2026 investigation finding that late-2025 unauthorized access may have exposed identity, financial, and medical data for affected patients.
4/27/2026 • Data Breaches & Exposure Events • General
DentaQuest began notifying individuals in the United States on July 17, 2026, after a May cyberattack exposed sensitive personal and health information.
8/13/2026 • Data Breaches & Exposure Events • General
DentaQuest disclosed in 2026 that unauthorized actors accessed its U.S. systems in May, potentially exposing personal and medical information belonging to more than 15 million individuals.
8/12/2026 • Data Breaches & Exposure Events • General
DentaQuest reported that hackers accessed its Massachusetts-based network from May 17 to May 20, potentially exposing health and personal data of more than 15 million individuals.
8/11/2026 • Data Breaches & Exposure Events • General
McShane & Brady is investigating unauthorized network access at Women's Center for Radiology in Orlando, Florida, from April 26-28, 2026, affecting over 66,000 patients.
8/13/2026 • Data Breaches & Exposure Events • General
Dental Studies Institute notified the Vermont Attorney General in May 2026 that financial account codes and payment-card information were compromised, without disclosing the breach scope or access method.
8/9/2026 • Data Breaches & Exposure Events • General
DentaQuest notified 15 million people in the United States in 2026 after a May hack potentially exposed sensitive records in a ShinyHunters data theft.
8/4/2026 • Data Breaches & Exposure Events • General
Federman & Sherwood is investigating a Wilson Dental data breach disclosed through a Texas Attorney General filing after approximately 3,476 Texas residents were affected.
7/29/2026 • Data Breaches & Exposure Events • General
Azle Smiles notified the Texas Attorney General on July 29, 2026, about a breach potentially affecting 9,444 Texas residents and exposing medical and identity information in Azle, Texas.
7/29/2026 • Data Breaches & Exposure Events • General
Allwyn Dental notified Texas authorities of a data breach affecting approximately 4,013 residents in Rockport and involving personal, medical, insurance, and identification information.
7/29/2026 • Data Breaches & Exposure Events • General
Saint Pete MRI in St. Petersburg, Florida, notified patients on July 22, 2026, after a February 23, 2025 breach may have exposed scanned patient identity and health data.
7/23/2026 • Data Breaches & Exposure Events • General
Federman & Sherwood investigates a DentaQuest data breach reported to the Texas Attorney General on July 21, 2026, affecting about 3.97 million Texas residents.
7/21/2026 • Data Breaches & Exposure Events • General
DentaQuest reported a breach affecting up to 2.6 million people, after ShinyHunters posted claimed customer data in May and multiple class actions were filed in Massachusetts federal court.
6/8/2026 • Data Breaches & Exposure Events • General
Vital Imaging Medical Diagnostic Centers disclosed a February 2025 data breach in Florida affecting PHI and PII for up to 260000 patients.
8/28/2025 • Data Breaches & Exposure Events • General
Richmond University Medical Center reported a healthcare data breach in New York involving accessed or removed files around May 6, 2023, with potential exposure of protected health information for 674,000 people.
1/7/2025 • Data Breaches & Exposure Events • General
North Florida Women's Care disclosed a patient data breach affecting 253 Texas residents in a filing dated August 14, 2026, involving personal and medical information.
8/14/2026 • Data Breaches & Exposure Events • General
Soniva Dental Care disclosed in May 2026 that a ransomware attack compromised patient identity and health information across its Texas dental network, including 9,444 Azle Smiles patients in Azle.
7/29/2026 • Data Breaches & Exposure Events • General
Park Dental Research disclosed a Massachusetts ransomware breach on or about April 29, 2026, with Interlock claiming data theft and IDX protection offered.
6/30/2026 • Data Breaches & Exposure Events • General
DentaQuest disclosed an early-June 2026 unauthorized access incident after ShinyHunters leaked 234GB of stolen data exposing about 2.6 million accounts.
6/5/2026 • Data Breaches & Exposure Events • General
Interesting
DentaQuest, CEVA Logistics, and other organizations reported data breaches during the week, while attackers exploited Cisco, Apple, VMware, and N-able flaws globally.
8/17/2026 • Data Breaches & Exposure Events • General
DentaQuest, Origin Energy, water utilities, Analog Devices, and Omnicell reported or faced cyberattacks in 2026 across the United States and Australia, potentially exposing millions of records.
8/5/2026 • Data Breaches & Exposure Events • General
Mysa Dental notified the Texas Attorney General of a data breach affecting approximately 3,394 Texas residents at the San Antonio dental clinic.
7/29/2026 • Data Breaches & Exposure Events • General
Former customer Lariesha Lincoln filed a proposed class action on July 6 in Florida alleging Futuredontics failed to protect patient data after Qili ransomware claimed theft from 1-800-Dentist.
7/9/2026 • Data Breaches & Exposure Events • General
Lumexa notified Butte, Montana residents in June about a medical records breach that occurred March 31 to April 9 and affected at least 3,000 people.
7/7/2026 • Data Breaches & Exposure Events • General
DentaQuest reported a cybersecurity breach involving unauthorized access on a limited network portion, with about 2.6 million accounts exposed and notifications planned.
7/4/2026 • Data Breaches & Exposure Events • General
Women’s Center for Radiology in Orlando reported a late-April unauthorized-access incident in legacy systems after detecting suspicious activity on April 29.
6/30/2026 • Data Breaches & Exposure Events • General
Qilin ransomware posted 1-800-dentist to a data leak site on June 28, 2026, alleging exposure risks for millions of consumer callers and dental practice data.
6/29/2026 • Data Breaches & Exposure Events • General
ShinyHunters claimed responsibility for a May 2026 DentaQuest breach affecting about 2.6 million records, with DentaQuest confirming unauthorized access on June 2, 2026.
6/5/2026 • Data Breaches & Exposure Events • General
DentaQuest confirmed June 2, 2026 unauthorized access after ShinyHunters extortion claims posted alleged data from the company in May 2026.
6/5/2026 • Data Breaches & Exposure Events • General
DentaQuest confirmed a June 2, 2026 unauthorized access breach potentially affecting up to 2.6 million account records, prompting Edelson Lechtzin LLP to review class action claims.
6/5/2026 • Data Breaches & Exposure Events • General
ViaQuest disclosed in Ohio a network server hacking incident in which 6,420 patients and staff had PII and PHI exposed, with HIPAA risk and a 2026 lawsuit investigation.
6/4/2026 • Data Breaches & Exposure Events • General
Radiology Associates of Richmond reported a healthcare data breach beginning around July 25, 2025, with PHI access discovered and investigated through April 6, 2026.
5/27/2026 • Data Breaches & Exposure Events • General
Radiology Associates of Richmond faced an alleged 2025 systems intrusion exposing patient PII and protected health information, with notifications mailed starting May 21, 2026, in Richmond, Virginia.
5/22/2026 • Data Breaches & Exposure Events • General
Shamis & Gentile investigated a ransomware-linked breach at Tampa Bay Dental Implants & Periodontics in St. Petersburg, Florida, affecting 6,400 people via backed electronic medical records.
5/19/2026 • Data Breaches & Exposure Events • General
Lumio Dental reported an HHS Breach Portal submission on March 29 for a ransomware-linked breach affecting 500 people in Jenks, Oklahoma.
5/18/2026 • Data Breaches & Exposure Events • General
Verber Dental Group notified patients and state regulators on May 7, 2026, after unauthorized access potentially exposed sensitive personal and protected health information in January.
5/18/2026 • Data Breaches & Exposure Events • General
Verber Dental Group reported a Jan 27 data breach in Pennsylvania with potential access to medical and identity information, followed by a May 11 class action investigation.
5/11/2026 • Data Breaches & Exposure Events • General
Florida Physician Specialists disclosed a late-November 2025 network breach exposing sensitive identifiers and medical data, with Edelson Lechtzin LLP considering class-action litigation.
5/3/2026 • Data Breaches & Exposure Events • General
Erick K. Perroud, DDS disclosed a data breach affecting 7,692 individuals in the United States to the U.S. Department of Health and Human Services on June 10, 2026.
7/8/2026 • Data Breaches & Exposure Events • General
Melissa King filed a June 4 class action in Massachusetts alleging DentaQuest cybersecurity failures after a ShinyHunters ransomware-linked attack exposed Social Security and health data.
6/29/2026 • Data Breaches & Exposure Events • General
DentaQuest confirmed a ransomware incident in the U.S. after ShinyHunters posted a 234GB dark web trove affecting about 2.6 million accounts.
6/5/2026 • Data Breaches & Exposure Events • General
On June 2, DentaQuest disclosed an unauthorized access incident after ShinyHunters posted a claimed 234 GB leak affecting 2.6 million account records in the United States.
6/4/2026 • Cybersecurity (Privacy-Relevant) • General
Radiology Associates of Richmond notified the Office of the Maine Attorney General on May 21 about unauthorized access to records of 266,183 patients.
6/3/2026 • Data Breaches & Exposure Events • General
Bridle Trails Family Dentistry disclosed in 2026 an unauthorized employee email account access in 2024 affecting about 20,976 individuals in Kirkland, Washington.
6/3/2026 • Data Breaches & Exposure Events • General
ViaQuest Psychiatric & Behavioral Solutions disclosed to HHS on May 8, 2026 a data breach affecting at least 6,420 people with exposure of PII and protected health information.
6/2/2026 • Data Breaches & Exposure Events • General
ClassAction.org attorneys are investigating a reported DentaQuest data breach after ShinyHunters claimed responsibility on May 23, 2026, and threatened release for May 27.
5/26/2026 • Data Breaches & Exposure Events • General
Radiology Associates of Richmond notified 266,000 patients after unauthorized access on or around July 25, 2025, exposing health and personal information.
5/23/2026 • Data Breaches & Exposure Events • General
Lumio Dental disclosed a ransomware-linked breach to HHS on March 29, 2026, involving passport, driver license, and medical record extracts.
5/18/2026 • Data Breaches & Exposure Events • General
Murphy Law Firm said a Florida Physician Specialists data breach exposed Social Security, financial, and health information, with cybercriminal risks and class-action legal outreach.
4/28/2026 • Data Breaches & Exposure Events • General
Florida Physician Specialists reported a late-November 2025 data breach, with April 2026 mail notifications and class-action investigation efforts underway in Jacksonville, Florida.
4/27/2026 • Data Breaches & Exposure Events • General
Florida Physician Specialists notified potentially affected individuals starting April 24, 2026 after unauthorized access in late 2025 may have compromised SSNs, payment data, and medical records.
4/27/2026 • Data Breaches & Exposure Events • General
James Standring, DDS notified patients in July about a September 2, 2024 data breach in Crescent City, California, potentially affecting 6,658 individuals.
8/10/2026 • Data Breaches & Exposure Events • General
Federman & Sherwood is investigating a reported network-server breach at James C. Standring, DDS in Crescent City, California, after approximately 6,658 individuals were affected.
8/10/2026 • Data Breaches & Exposure Events • General
James C. Standring, DDS disclosed on July 17, 2026, that unauthorized access affected 6,658 patients at the Crescent City, California, dental practice.
8/10/2026 • Data Breaches & Exposure Events • General
On June 10, 2026, an attorney general filing reported a data incident by a Michigan dental office, potentially impacting about 7,692 individuals.
7/8/2026 • Data Breaches & Exposure Events • General
Totem Lake Family Dentistry in Kirkland, Washington, reported in June 2025 that unauthorized employee email access potentially exposed protected health information affecting more than 3,400 individuals.
5/18/2026 • Cybersecurity Tech (Privacy-Relevant) • General