Highlands Oncology Group Data Breach
About the Investigation:
Siri & Glimstad Investigates Highlands Oncology Group PA
What Happened?
Highlands Oncology discovered on June 2, 2025 that it was the target of a ransomware attack. Unauthorized access occurred between January 21 and June 2, 2025; systems were encrypted and files may have been acquired by the attacker.  It is estimated that data belonging to approximately 113,575 individuals across multiple states was compromised.
About Highlands Oncology
Based in Arkansas, Highlands Oncology provides cancer care services, including chemotherapy, radiation, and diagnostic imaging.
Was Your Information Affected?
If you received notification, your data—possibly including name, date of birth, Social Security number, driver’s license number, passport number, digital signature, medical record and treatment information, health insurance details, and financial data—may have been exposed.
Are You Entitled to Compensation?
Siri & Glimstad LLP is reviewing whether Highlands Oncology failed to implement adequate security protections under HIPAA and consumer privacy laws and is investigating potential legal claims on behalf of affected individuals.
What Should You Do Now?
If you received a data breach letter from Highlands Oncology Group PA, contact Siri & Glimstad, a nationally recognized and trusted data privacy law firm that has recovered tens of millions of dollars for consumers. The firm’s team of over 80 attorneys and other legal professionals has a winning track record in the data privacy space, holding companies accountable for lax data privacy practices, and securing compensation for millions of consumers.
We work on a contingency basis, meaning we do not receive any payment unless we win for YOU!
Remember, data breaches are serious matters that can result in long-term harm. Hackers and other third-party actors may use stolen information to commit financial fraud or other forms of identity theft. It is crucial that you do not delay. Contact us today.
We work on a contingency basis — which means you pay nothing unless we recover compensation for you.
Data breaches are serious. Stolen information can be used for years after the initial theft, leading to financial fraud and long-term identity theft risks. Protect your rights now.
Contact Information:
Siri & Glimstad LLP / Join Class Actions
National Representation | Offices in NY, NC, MI, CA, FL, AZ, & D.C.
Main: 888-747-4529 (Ask for Jen Malainy)
Text: 440-381-0338
Email: databreach@sirillp.com
www.sirillp.com | www.joinclassactions.com
Attorney Advertising. Prior results do not guarantee future outcomes.
