MCBS, an Atlanta-based medical business management company, disclosed a breach that affects more than 1.2 million people after hackers accessed its systems in September 2025 and may have stolen sensitive personal and medical data. The PEAR ransomware group claimed responsibility, saying it exfiltrated over 3 TB of files and also boasted about attacks on Motility Software Solutions and Tri-Century Eye Care. #MCBS #PEARRansomware #MotilitySoftwareSolutions #TriCenturyEyeCare
Keypoints
- MCBS disclosed a breach affecting 1,261,464 individuals.
- Attackers accessed MCBS systems between September 22 and September 26.
- The stolen data may include names, addresses, SSNs, birth dates, insurance details, and medical records.
- MCBS said seven healthcare organizations had data compromised in the attack.
- PEAR ransomware claimed the breach and said it stole more than 3 TB of files.
Read More: https://www.securityweek.com/mcbs-data-breach-affects-1-2-million-individuals/