WERE YOU AFFECTED?

Data Breach Lawsuits & Investigations

Every year, hundreds of millions of people are affected by data breaches that can leave them vulnerable to identity theft, credit damage, reputational harm and more.

Class action lawsuits remain one of the strongest ways to hold companies accountable for leaving consumers’, employees’ and patients’ private information unprotected. Indeed, some have resulted in multi-million-dollar settlements on behalf of those who – through no fault of their own – had their information stolen and, in the worst cases, even published on the dark web.

When a data breach lawsuit is successful, it can also require the company at fault to implement new security protocols to ensure the information it is entrusted with – medical, financial and otherwise – stays safe.

Got a data breach notice?

Scroll down to see the list of data breaches attorneys working with ClassAction.org are currently investigating. If you see one that looks familiar, click through to learn more about the breach and what you can do to potentially help get a class action lawsuit started.

And remember – don’t throw your notice away! It essentially serves as proof that you were affected by a specific security incident and can be vital if you choose to take legal action for the harm you suffered.

View All Breaches

Received a notice but don’t see the breach listed here? Tell us about it using this form.

Featured Data Breaches

• Featured

Park Dental Partners, a resource and support organization, has reported an August 2026 data breach that may have compromised patient information.

Impacted Data:
TBD
• Featured

The service provider for New Jersey-based Allied Digestive Health has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Name
• Featured

McKesson Corporation, a medical supplies and pharmaceuticals company, has reported an August 2026 data breach that exposed certain customers' data.

Impacted Data:
TBD
• Featured

Nutex Health, a physician-led healthcare management company, has reported a data breach that may have exposed private information.

Impacted Data:
TBD
• Featured

Attorneys are investigating claims from ransomware group Interlock that Southeastern Oklahoma State University was breached in July 2026.

Impacted Data:
TBD
• Featured

Kiewit Corporation, a major construction and engineering firm, has reported a data breach impacting the information of its employees and contractors.

Impacted Data:
Social Security Number
Date of Birth
Driver's License Number
Address
Health Information
Name
Government-Issued Identifier

Recent Data Breaches

Received a notice but don’t see the breach listed here? Tell us about it using this form.

Attorneys are investigating claims from ransomware group Payouts King that Washington's Proliance Surgeons was breached in August 2026.

Impacted Data:
TBD

Mountain Laurel Medical Center, a multispecialty healthcare group in Maryland, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Health Record
• Featured

Park Dental Partners, a resource and support organization, has reported an August 2026 data breach that may have compromised patient information.

Impacted Data:
TBD

Virginia's About Women OB-Gyn has reported a December 2025 data breach that may have exposed sensitive personal information.

Impacted Data:
Social Security Number
Date of Birth
Financial Account Number
Medical Information
Medical Record Number
Passport Number
Payment Card Number
Name
Military ID Number
Financial Account Access Information
Medicare/Medicaid Number
Health Insurance Identification or Group Number
Patient Identification or Account Number

North Carolina's Bennett College has reported a late 2025 data breach that may have exposed sensitive personal information.

Impacted Data:
Social Security Number
Date of Birth
Medical Information
Health Insurance Information
Financial Account Information
Passport Number
Name
US Alien Registration Number
Driver's License/State ID Number
Digital Signature
Taxpayer ID Number

Attorneys are investigating claims from hacker group Brain Cipher that Comprehensive Care Services was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group ShinyHunters that Neogen Corporation, a food and animal safety company, was breached in August 2026.

Impacted Data:
TBD
• Featured

McKesson Corporation, a medical supplies and pharmaceuticals company, has reported an August 2026 data breach that exposed certain customers' data.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Unsafe that Amzur Technologies, a Florida-based IT support company, was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Anubis that California's Caduceus Medical Group was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Storm that Our Hospice of South Central Indiana was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Lockbit 5 that Tennessee Medical Association was breached in August 2026.

Impacted Data:
TBD

Washington's Rockwood Retirement Communities has reported a data breach that may have exposed personal and protected health information.

Impacted Data:
Social Security Number
Date of Birth
Medical Information
Health Insurance Information
Financial Account Information
Passport Number
Name
Driver's License/State ID Number
Medicaid or Medicare Number

Murfreesboro Medical Clinic, a Tennessee healthcare center, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Health Record

Attorneys are investigating claims from ransomware group PEAR that Next Level Urgent Care, a Texas healthcare chain, was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Qilin that Integrex, a healthcare support company, was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group AiLock that Hamilton Company, a laboratory technology company, was breached in August 2026.

Impacted Data:
TBD

Ocean Edge Resort & Golf Club, a Cape Cod vacation resort, has reported a July 2025 data breach involving sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Medical Information
Health Insurance Information
Driver's License Number
Financial Account Information
Name

Attorneys are investigating claims from ransomware group Dire Wolf that National Kidney Registry was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Chaos that Central Ohio Primary Care Physicians was breached in August 2026.

Impacted Data:
TBD
• Featured

The service provider for New Jersey-based Allied Digestive Health has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Name

University Surgical Associates, an affiliate of the University of Tennessee, has reported a data breach that impacted sensitive information.

Impacted Data:
Social Security Number
Health Record

Ascent Global Logistics, a North American end-to-end logistics services company, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Credit/Debit Card Number
Name
Driver's License
Medical Records
Financial Account

Life Bridges, a residential and support company serving people with disabilities, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Driver's License Number
Address
Financial Account Information
Diagnosis
Lab Results
Medical Record Number
Name
Dates of Service
Medicare Number
Medicare ID Number
Medical Condition
Insurance Claims Information
Debit Card Information
Managed Care Organization Number
• Featured

Kiewit Corporation, a major construction and engineering firm, has reported a data breach impacting the information of its employees and contractors.

Impacted Data:
Social Security Number
Date of Birth
Driver's License Number
Address
Health Information
Name
Government-Issued Identifier
• Featured

Nutex Health, a physician-led healthcare management company, has reported a data breach that may have exposed private information.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Booba Project that New York's Country-Wide Insurance was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Coinbase Cartel that Texas-based Longhorn Investments was breached in August 2026.

Impacted Data:
TBD
• Featured

Attorneys are investigating claims from ransomware group Interlock that Southeastern Oklahoma State University was breached in July 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Coinbase Cartel that Integrated Health Systems, an IT support company, was breached in August 2026.

Impacted Data:
TBD

Psychiatric Wellness Center, a psychiatry practice serving two counties in Southern California, has reported a data breach impacting sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Health Insurance Information
Lab Results
Prescription Information
Medical Record Number
Patient Account Number
Name
Medicare/Medicaid ID Number
Driver's License/Government ID Number
Date of Service
Diagnosis and Treatment Information
Provider Name and Location

Michigan's Surgeons Choice Medical Center has disclosed a data breach involving sensitive personal information.

Impacted Data:
Social Security Number
Health Record
• Featured

Forrestall CPAs, a Georgia accounting firm, has reported a December 2025 data breach that exposed sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Health Insurance Information
Driver's License Number
Address
Financial Account Information
Name
State Identification Card Number

Attorneys are investigating claims from ransomware group Anubis that Interim HealthCare, a hospice and elderly care provider, was breached in August 2026.

Impacted Data:
TBD
• Featured

Asset management and investment firm Apollo Global Management has reported a July 2026 data breach that exposed sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Address
Contact Information
Name
• Featured

Legacy Bank and Trust, a Missouri-based financial institution, has reported a May 2026 data breach involving sensitive information.

Impacted Data:
Social Security Number
Financial Account Information
Login Information
Driver's License
Government-Issued ID
Tax Identification Number

Attorneys are investigating claims from hacker group PEAR that New York's Medical Arts Chemists and Surgicals was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group PEAR that Austin Plastic Surgery Institute was breached in August 2026.

Impacted Data:
TBD

Williams Brothers Construction, a large civil engineering firm based in Texas, has reported a January 2026 data breach involving sensitive information.

Impacted Data:
Social Security Number

Delek US Data Breach

August 2026
Delek US

Attorneys are investigating claims from hacker group Helix that Delek US, an energy and fuel refinery company, was breached in August 2026.

Impacted Data:
TBD
• Featured

Attorneys are investigating claims from ransomware group Payout Kings that DEX, a technology services provider, was breached in April 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Settra that Alphanumeric Systems, a healthcare communications company, was breached in August 2026.

Impacted Data:
TBD

California's Heart Vascular & Leg Center has disclosed a third-party data breach involving sensitive patient information.

Impacted Data:
Social Security Number
Date of Birth
Driver's License Number
Financial Account Information
Payment Card Information
Diagnosis
Prescription Information
Passport Number
Name
Medical Treatment Information
Health Insurance Policy Number
Government ID Number
Taxpayer ID Number

Attorneys are investigating claims from ransomware group Storm that Rood & Riddle Equine Hospital was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Storm that American Contractors Insurance Group was breached in August 2026.

Impacted Data:
TBD
• Featured

Heights Finance, a personal loan provider based in South Carolina, has reported a May 2026 data breach involving sensitive customer information.

Impacted Data:
Social Security Number
Date of Birth
Financial Information
Driver's License Number
Address
Phone Number
Email Address
State ID Number
Bank Account Information
Name
Tax ID

Midwest Spine and Brain Institute, a Minnesota-based surgical practice, has reported a third-party breach impacting sensitive information in its care.

Impacted Data:
Social Security Number
Name
Medical Records

Attorneys are investigating claims from hacker group ShinyHunters that Cook Medical, a large medical device manufacturer, was breached in August 2026.

Impacted Data:
TBD
• Featured

Attorneys are investigating claims from ransomware group Dire Wolf that Arizona State University was breached in August 2026.

Impacted Data:
TBD

River City Data, a document digitization company, has disclosed a data breach involving the sensitive information of its clients' patients.

Impacted Data:
Social Security Number
Date of Birth
Health Insurance Information
Address
Health Information
Medical Record Number
Name

Attorneys are investigating claims from hacker group INC Ransom that Lansing Urgent Care, an eight-clinic healthcare group, was breached in August 2026.

Impacted Data:
TBD

Carhartt Data Breach

August 2026
Carhartt

Attorneys are investigating claims from hacker group ShinyHunters that Michigan-based apparel brand Carhartt was breached in August 2026.

Impacted Data:
TBD
• Featured

Lennar Mortgage, a subsidiary of major nationwide homebuilder Lennar Corporation, has disclosed a data breach impacting sensitive personal information.

Impacted Data:
Social Security Number
Date of Birth
Contact Information
Financial Account Information
Name
Driver's License/State ID Information
Medical-Related Information
Passport/Government ID Information
• Featured

Sharecare Data Breach

August 2026
Sharecare

Attorneys are investigating claims from hacker group ShinyHunters that Sharecare, a digital health company, was breached in August 2026.

Impacted Data:
TBD

NFI North Data Breach

August 2026
NFI North

NFI North, an individual and family services organization serving Maine and New Hampshire, has disclosed a September 2025 data breach impacting sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Medical Information
Health Insurance Information
Driver's License Number
Address
Financial Account Information
Name

Corporation Service Company, a multinational business services firm, has disclosed an August 2025 data breach affecting sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Financial Information
Government-Issued ID Number
Name
Driver's License

Attorneys are investigating claims from ransomware group Storm that United Group of Companies, a real estate developer, was breached in August 2026.

Impacted Data:
TBD

Cornelius Data Breach

August 2026
Cornelius

Attorneys are investigating claims from ransomware group Cl0p that Cornelius, a nationwide beverage equipment vendor, was breached in August 2026.

Impacted Data:
TBD

Minnesota ENT, a group of ear, nose and throat specialists, has disclosed a data breach affecting personal and protected health information.

Impacted Data:
Social Security Number
Date of Birth
Medical Information
Health Insurance Information
Driver's License Number
Financial Account Information
Name
• Featured

Universal Plant Services, an industrial maintenance and engineering services provider, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Driver's License Number
Financial Account Information
Name

Flowco Data Breach

August 2026
Flowco

Attorneys are investigating claims from hacker group Settra that Flowco, an oil and gas technology company, was breached in June 2026.

Impacted Data:
TBD

AngMar Data Breach

August 2026
AngMar

Attorneys are investigating claims from hacker group Interlock that Angmar, a home healthcare management company, was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Anubis that Cleaver-Brooks, a boiler and thermal solutions company, was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Genesis that Consolidated Medical Practices of Memphis was breached in August 2026.

Impacted Data:
TBD

Kovack Financial, an investment advisory firm in Florida, has reported an August 2025 data breach affecting sensitive information.

Impacted Data:
Social Security Number
Financial Account Information
Driver's License

Idaho's Minidoka Memorial Hospital has reported an April 2026 data breach impacting sensitive patient information.

Impacted Data:
Social Security Number
Medical Information
Address
Treatment Information
Name
Healthcare Information
• Featured

USA DeBusk, an industrial services provider based in Texas, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Health Insurance Information
Driver's License Number
Address
Phone Number
Email Address
Passport Number
Username and Password
Payment Card Number
Name
Bank Account Number
Medical and Health-Related Information
• Featured

Attorneys are investigating claims from hacker group Storm that Indiana University Health was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group The Gentlemen that California-based Eva Care Group was breached in August 2026.

Impacted Data:
TBD

Texas-based Oculus Pathology has reported a data breach that may have exposed personally identifiable and protected health information.

Impacted Data:
Social Security Number
Date of Birth
Financial Account Number
Prescription Information
Provider Name
Medical Record Number
Payment Card Number
Name
Health Insurance Policy Number
Patient ID Number
Procedure Information
Clinical Information
Medicare Number
Treatment Location
Health Insurance Group Number
Tax Identification Number
Driver's License or State Identification Number
Medical Diagnosis Information
Medical Treatment/Procedure Information
• Featured

ABC Supply, a nationwide roofing supplies wholesaler, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Driver's License

Attorneys are investigating claims from ransomware group Storm that Pennsylvania-based Liberty Healthcare was breached in August 2026.

Impacted Data:
TBD

LabPharma Data Breach

August 2026
LabPharma

Attorneys are investigating claims from ransomware group Dark Project that LabPharma, a Florida clinical laboratory, was breached in mid-2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Storm that New York-based Pioneer Bank was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Insomnia that Florida-based Park Place Behavioral Health Care was breached in July 2026.

Impacted Data:
TBD
• Featured

Heart of America Medical Center, a North Dakota medical provider, has reported a data breach involving sensitive patient information.

Impacted Data:
Social Security Number
Medical Records

Pavillon Data Breach

August 2026
Pavillon

Attorneys are investigating claims from hacker group Global Secret Group that Pavillon, a North Carolina addiction treatment center, was breached in August 2026.

Impacted Data:
TBD

Leviton Data Breach

August 2026
Leviton

Attorneys are investigating claims from hacker group Dark Project that electronics manufacturer Leviton was breached in July 2026.

Impacted Data:
TBD

Wisconsin's Mile Bluff Medical Center has reported a data breach impacting sensitive patient and employee information.

Impacted Data:
Social Security Number
Medical Information
Health Insurance Information
Driver's License Number
Financial Account Information
Name

Attorneys are investigating claims from ransomware group Chaos that New York-based Atlantic, Tomorrow's Office was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Qilin that Texas-based Community Management Associates was breached in July 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group INC Ransom that South Dakota-based Lantis Enterprises was breached in August 2026.

Impacted Data:
TBD

First Tek Data Breach

August 2026
First Tek

Attorneys are investigating claims from ransomware group Play that IT support company First Tek was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from hacker group Chaos that Healthcare Highways, a medical provider network company, was breached in August 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Anubis that Pennsylvania-based Blackburn's Physicians Pharmacy was breached in August 2026.

Impacted Data:
TBD

Miles Partnership, a global tourism marketing agency, has reported a data breach involving sensitive information.

Impacted Data:
Social Security Number
Financial Account Information
Driver's License
Credit and Debit Account Info

Missouri-based Cameron Regional Medical Center has reported a June 2026 data breach involving personal and protected health information.

Impacted Data:
Social Security Number
Date of Birth
Health Insurance Information
Driver's License Number
Address
Financial Account Information
Provider Name
Treatment Cost
Name
Employer ID Number
Electronic/Digital Signature
Patient Identification Number
Date of Treatment
Medical Diagnosis and Treatment Information
Agency-Assigned Identification Number

Attorneys are investigating claims from hacker group Anubis that grocery chain Winn-Dixie was breached in August 2026.

Impacted Data:
TBD

Pennsylvania-based Valley Kidney Specialists has disclosed a June 2026 data breach involving sensitive patient information.

Impacted Data:
Social Security Number
Date of Birth
Address
Diagnosis
Medical Record Number
Name
Date of Service/Treatment
Medical Insurance Information

Attorneys are investigating claims from hacker group The Gentlemen that Peachtree Group, a Georgia-based investment firm, was breached in July 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Play that Cambridge Management, an affordable housing management company, was breached in August 2026.

Impacted Data:
TBD
• Featured

Amgen Data Breach

July 2026
Amgen

Biopharmaceutical manufacturing company Amgen has reported a July 2026 data breach affecting sensitive information.

Impacted Data:
Protected Health Information (PHI)
Proprietary Data

Cardiovascular Institute of New England, a Rhode Island-based healthcare provider, has reported a data breach involving sensitive patient and employee information.

Impacted Data:
Date of Birth
Financial Account Number
Medical Information
Treatment Information
Phone Number
Prescription Information
Name
Clinical Information
Treatment Location
Medical Diagnosis
Medical Insurance Provider Information

Attorneys are investigating claims from ransomware group PEAR that healthcare support company Sonitor Technologies was breached in July 2026.

Impacted Data:
TBD

Attorneys are investigating claims from ransomware group Qilin that Hawaii Family Dental, a 12-location dental practice, was breached in July 2026.

Impacted Data:
TBD

Kansas City, Missouri-based Nephrology Associates has reported a January-to-April 2026 data breach involving sensitive information.

Impacted Data:
Social Security Number
Date of Birth
Health Insurance Policy Information
Name
Driver's License/State ID Number
Government Identification Number
Medical Treatment/Diagnosis Information
• Featured

Analog Devices, a multibillion-dollar semiconductor and electrical manufacturing company, has reported a data breach detected in June 2026.

Impacted Data:
TBD
• Featured

HealthStream, a software solutions company, has disclosed a data breach impacting employee and certain customers' information.

Impacted Data:
Billing Information
Employee Information

Sunrise Company, a real estate developer based in California, has disclosed a data breach potentially affecting sensitive information.

Impacted Data:
Name

Data Breach FAQs

What is a data breach?

I got a data breach notification. Does this definitely mean my info is being used fraudulently?

What should I do if my Social Security number is in a data breach?

What should I do if I get a data breach letter?

Why do attorneys need to see my data breach notice?

So, I can sue over a data breach?

How do I know if a data breach letter is legitimate?

Can you give me an example of a data breach notification letter?

What if I never heard of the company that sent me a data breach notice?

What if I threw my data breach notice out?

What if I think I’m affected but haven’t received a notice?

What kind of damages can I claim for a data breach?

How much can I claim in a data breach settlement?

I’m looking for data breach class action settlements. Where can I find those?

How do I know if I was part of a data breach?

How do I prevent a data breach?

What is the leading cause of data breaches?

Anything else I should know?

What if there’s a data breach settlement?