Integrated Oncology Network Data Breach Class Action

At Console & Associates, our data breach lawyers are closely examining the recent Integrated Oncology Network data breach. This data breach was disclosed following a cyber security incident at Integrated Oncology Network, which may have affected an unknown number of cCare individuals, potentially exposing sensitive personal identifiable information.

What Happened?

According to information released by the California Attorney General, Integrated Oncology Network discovered unauthorized access to sensitive data stored within its email and SharePoint accounts. The unauthorized activity occurred between December 13 and December 16, 2024. After concluding their internal investigation on May 9, 2025, ION determined that the breach involved the exposure of confidential patient information.

Although the total number of affected individuals has not yet been confirmed, ION notified its affiliated physician groups, including cCARE, on June 13, 2025. Formal data breach notification letters were then sent to affected individuals on June 27, 2025.

The compromised data may include:

• Full names
• Social Security numbers
• Dates of birth
• Home addresses
• Financial account details
• Medical diagnoses
• Lab results
• Medication and treatment information
• Health insurance and claims data
• Healthcare provider names and treatment dates

Steps To Take If You Were Affected By A Data Breach

1. Monitor all accounts and credit reports closely
   1. Set up alerts for suspicious activity
   2. Review all financial statements thoroughly
   3. Request free credit reports and examine them for unauthorized entries
      
      
2. Consider freezing your credit
   1. Contact all three major credit bureaus to place a freeze
   2. Understand this prevents new accounts from being opened in your name
   3. Remember to temporarily lift the freeze when applying for legitimate credit
      
      
3. Look out for phishing attempts using information from the Integrated Oncology Network data breach
   1. Be wary of unexpected emails or messages claiming to be from Integrated Oncology Network
   2. Don't click on suspicious links or download unexpected attachments
   3. Verify all communications through official channels
      
      
4. Change passwords for affected accounts
   1. Create strong, unique passwords for each account
   2. Use a combination of letters, numbers, and special characters
   3. Consider using a password manager for better security
      
      
5. Enable two-factor authentication where possible
   1. Add this extra layer of security to all important accounts
   2. Use authenticator apps rather than SMS when available
   3. Keep backup codes in a secure location

For more detailed guidance, explore our “Guide for Victims of a Data Breach” to better understand measures you can take to protect yourself after a data breach.

Integrated Oncology Network Overview

Integrated Oncology Network (ION) is a physician-owned organization headquartered in Nashville, Tennessee. ION operates a network of approximately 50 cancer treatment centers across more than a dozen states, providing administrative, clinical, and reimbursement support to community-based oncology and urology practices. The company reports annual revenues of roughly $80 million and employs around 250 professionals.

cCARE (California Cancer Associates for Research & Excellence), based in San Diego, California, is one of ION’s largest affiliated oncology practices. With a staff of about 360, cCARE delivers outpatient cancer treatment, imaging, and hematology services across multiple facilities, including:

• Chula Vista
• Encinitas
• Fresno
• High Desert
• La Jolla
• Murrieta
• Riverside
• San Marcos

Integrated Oncology Network Data Breach Victims Have Rights - Don’t Wait to Act

How do you know that you were affected by the Integrated Oncology Network data breach? Usually victims receive a NOTICE OF DATA BREACH in the mail, but the impact of a breach can be felt long before notices are sent to those affected. This can be in the form of fraudulent financial activity and other forms of identity theft.

If you believe you were affected, we encourage you to reach out to our data breach law firm for legal assistance through a no-cost consultation about your situation. We will review your eligibility to file a data breach class action lawsuit and discuss your legal rights and any compensation that may be available to you.

Complete our confidential contact form below and a member of our legal team will be in touch.