2026 Columbia Orthopaedic Group — LockBit ransomware claim (May 26)
Data compromised
Unspecified healthcare data per actor marketing
Technical writeup
BreachHistory recorded May 26, 2026 LockBit ransomware marketing against Columbia Orthopaedic Group (columbiaorthogroup.com), a Missouri orthopedic provider. No patient notice count at catalog time.
Root cause
LockBit ransomware extortion claim