Unlimited Technology Systems, a healthcare technology provider based in Montgomery, Ohio, has disclosed a data breach affecting over 3.8 million individuals. The company confirmed that unauthorized actors accessed one of its commercial data centers between October 5 and October 10, 2025, potentially compromising personal, medical, and insurance information.
The incident was discovered on October 19, 2025, when Unlimited Technology Systems identified unauthorized activity within its data center. Following this discovery, the company engaged a leading cybersecurity forensic firm to investigate the breach, notified law enforcement, and began a review of the affected data.
The investigation determined that an unauthorized actor may have obtained copies of certain personal information during the five-day access window. The potentially exposed data includes names, health insurance details, and medical information such as medical record numbers, diagnoses, and dates of service. Scanned documents like driver's licenses, insurance cards, and intake forms were also among the compromised data, along with Social Security numbers, dates of birth, addresses, email addresses, and phone numbers.
Unlimited Technology Systems clarified that the breach did not expose complete medical records, medical images, or payment card and bank account information. The company reported the incident to the U.S. Department of Health and Human Services, indicating that 3,803,750 individuals were affected.
At present, Unlimited Technology Systems has not provided technical details of the attack, nor has it identified the specific threat actor responsible. No known extortion groups have publicly claimed responsibility for the breach.
In response to the incident, Unlimited Technology Systems stated it has enhanced its security measures to mitigate the risk of future similar occurrences. The company is also offering two years of complimentary identity protection services through Kroll to all affected individuals. These services include credit monitoring, fraud consultation, and identity theft restoration support.
Unlimited Technology Systems provides financial, billing, and revenue cycle management solutions to healthcare organizations, supporting more than 4,500 oncology practices and over 6,500 specialty providers. Its platforms assist providers in managing payments, claims, and administrative operations.
