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Long Island Weight Loss Institute Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Long Island Weight Loss Institute data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Long Island Weight Loss Institute
Long Island Weight Loss Institute is a medical weight loss clinic that provides physician-supervised weight loss programs across multiple locations in Long Island, New York. The company was founded in 2001 and offers evidence-based weight loss solutions, including behavioral counseling, prescription medications, and the latest treatments such as GLP-1 medications for qualifying patients.
The institute operates clinics in Smithtown, East Meadow, Port Jefferson Station, and Amityville.
What Happened?
On or around Sept. 22, 2025, Long Island Weight Loss Institute discovered unusual activity within its computer systems. The company secured its network and brought in third-party cybersecurity experts to investigate.
After a thorough review, it was determined that certain private identifiable information and protected health information may have been accessed as a result of a ransomware attack. The hacking group Qilin claimed responsibility and posted about the incident on the dark web on Oct. 19, 2025, stating they had obtained 13 GB of organization data.
The company completed its review and began notifying affected individuals by mail on Jan. 5, 2026.
Information Exposed:
- Names
- Addresses
- Phone numbers
- Email addresses
- Dates of birth
- Social Security numbers
- Passport numbers
- Driver’s license numbers
- Government-issued photo identification documents
- Medical record numbers
- Medical treatment information
- Lab results
- Diagnoses/conditions
- Prescription information
- Health insurance information
- Claim information
- Invoices
- Billing and payment information
- Credit card/bank account information
The specific types of information exposed vary for each individual.
Your Rights and Next Steps
If you received a notification from Long Island Weight Loss Institute, it is important to take the incident seriously. Even if there is no evidence of misuse, the exposure of sensitive information can put individuals at risk for identity theft, fraud, and financial harm.
Here are steps you can take to protect yourself:
- Review account statements, credit reports, and health insurance explanation of benefits forms for any suspicious activity
- Take advantage of the complimentary credit monitoring services offered by Long Island Weight Loss Institute
- Consider placing a fraud alert or credit freeze on your credit files with the major credit bureaus (Equifax, Experian, TransUnion)
- If you notice any unauthorized activity, report it immediately to the appropriate institutions and consider filing a police report
- Stay informed by reading the official notice and following any additional recommendations provided
Lawyers are ready to help individuals affected by this breach understand their rights and explore legal options. Victims of data breaches may be entitled to compensation for damages, time spent addressing the breach, and the risk of identity theft.
You May Be Entitled to Compensation
If your information was compromised in the Long Island Weight Loss Institute data breach, you may be eligible to join a class action lawsuit and seek compensation. Lawyers are actively investigating claims and can help determine your eligibility.
To find out if you qualify and to take the next step, complete the below form to join the lawsuit investigation.
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