MCBS Data Breach Affects 1.26 Million People — Is Your Data at Risk?

MCBS Data Breach Affects 1.26 Million People — Is Your Data at Risk?

MCBS says hackers accessed files containing personal, insurance, and medical information linked to 1.26 million people. Here’s what was leaked and how you can reduce identity theft risks starting today.

What Happened in the MCBS Data Breach?

According to SecurityWeek, MCBS reported unauthorized access to its computer network during September 2025.

MCBS is a Georgia medical billing and revenue management company that works with healthcare providers.

Hackers accessed its systems from September 22 through September 26. They may have stolen files containing personal, insurance, and medical information.

Information from healthcare breaches can remain useful to criminals for years. They may use personal details in phishing emails, identity theft attempts, or fake medical billing calls.

Many people also do not realize their information was leaked until unusual activity appears. Their data may have been involved in other breaches that received little attention.

If you are unsure whether your information was leaked, automatic monitoring can help you notice problems sooner. 

Futureproof monitors your data for leaks 24/7 and helps you reduce scam risks with simple, clear steps.

Who Was Affected and What Data Was Leaked?

The US Department of Health and Human Services says the breach affected 1,261,464 people. The PEAR ransomware group also claimed it stole more than three terabytes of data.

The MCBS notice names seven healthcare organizations connected to the affected information:

  • C&C MD PC
  • Nuclear Medicine and Pathology Associates
  • Radiation Oncology Associates, LLP
  • SkinPath Solutions, LLC
  • South Georgia Radiology Consultants PC
  • Stephen W. Brown & Radiology Associates of Augusta, LLP
  • Vascular Radiology Associates II, LLP

The type of information involved varied by person. It may have included:

  • Names and addresses
  • Social Security numbers
  • Dates of birth
  • Health plan beneficiary numbers
  • Insurance policy or subscriber identification numbers
  • Other health insurance information
  • Medical histories
  • Mental or physical condition information
  • Treatment and diagnosis information

MCBS said it had found no evidence of identity theft connected to the breach when it published its notice.

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How the Attackers Entered MCBS Systems

MCBS has not publicly explained how the attackers first entered its network or which security weakness they used.

PEAR is described as a ransomware group. Ransomware is harmful software commonly used to lock files or support payment demands.

However, MCBS has not said whether its files were locked or whether the company received a ransom demand.

The confirmed detail is that someone gained unauthorized access and may have removed files over several days.