Think Big Health care Solutions Data Breach Investigation

The data breach lawyers at The Lyon Firm are investigating new claims related to the recently announced Think Big Health Care Solutions data breach. The breach underscores the persistent vulnerability of healthcare data and the critical need for robust IT security measures at all healthcare facilities. Contact our attorneys to discuss the next steps and to consider joining a class action data breach lawsuit. We have filed cases on behalf of plaintiffs in all fifty states and offer free consultations.

What Happened at Think Big Health Care Solutions?

Think Big Health, a provider of medical billing and administrative services first detected unusual IT activity and later disclosed the incident on July 27, 2025. The breach may have compromised the sensitive personal and health information of an undetermined number of patients, raising alarms about possible medical identity theft and fraud.

The reported breach allegedly stemmed from unauthorized access to Think Big’s systems, compromising a large dataset that may include the following: names, Social Security numbers, tax identification numbers, passport numbers, addresses, dates of birth, health insurance policy numbers, bank account details, credit card information, diagnoses, medications, and medical record numbers.

At the time of writing, the company was still in the process of identifying affected individuals, with data breach notifications set to be mailed as the investigation concludes. In response, Think Big has enlisted a consulting Chief Information Officer, implemented enhanced security protocols, and offered free credit monitoring through HaystackID to mitigate the ongoing risks.

It is important to understand the risks following any data theft incident as the risks are serious when exposed Social Security numbers and financial data fall into the wrong hands. Medical identity theft poses a unique threat, allowing criminals with certain data to seek treatment or prescriptions under a victim’s name, leading to inaccurate medical records, unauthorized charges, or even life-threatening misdiagnoses if treatments conflict. The inclusion of detailed health information—diagnoses, lab results, and medications—worsens the issue, as it can be exploited for targeted scams or sold on the dark web.