Breachesby GlyphMedical Computer Business Services
Disclosed Jul 28, 20261,261,464 affectedConfirmed
Medical billing firm MCBS says 2025 ransomware breach hit 1,261,464 people
Georgia medical billing company MCBS disclosed that a September 2025 network breach exposed names, SSNs, insurance IDs and medical histories of 1,261,464 people. The PEAR ransomware group claimed 3.3 TB.
What is known
| People affected | 1,261,464 (as reported by the organization) |
|---|---|
| Disclosed | Jul 28, 2026 |
| Attack | Ransomware |
| Data exposed | NamesAddressesSocial Security numbersDates of birthInsuranceHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
History of this record
First recordedby seedSource
First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.