Columbia Medical Practice
ent_517069682fd55499
Disclosures
4
State AG · Leak Site · 3 jurisdictions
Incidents
1
filings grouped by incident
Max affected reported
6
as filed · State AG ME
Leak-site claims
2
unverified actor claims
Identity resolution
- Canonical name
- Columbia Medical Practice
- Normalized
- columbia medical practice— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- cmpractice.com
Disclosure history (4)newest first
- 🦞Maine State AGas victim2026-04-24
Columbia Medical Practice disclosed an external system breach (hacking) on 11/05/2025 where an unknown cyber actor installed a virus to lock files and exfiltrated data including names and Social Security numbers. Discovered on 03/31/2026. Six Maine residents were notified on 04/24/2026. The healthcare facility offered one year of credit monitoring and identity restoration via TransUnion.
- ⛰️New Hampshire State AGas victim2026-04-24
Columbia Medical Practice notified the New Hampshire Attorney General on April 24, 2026, of a November 5, 2025 incident where an unknown cyber actor accessed its network, installed ransomware to lock files, and exfiltrated patient data including names and Social Security numbers. Approximately 3 New Hampshire residents were affected. The company engaged cybersecurity specialists, notified law enforcement and HHS, and provided one year of credit monitoring via TransUnion.
- GLOBALLeak Siteas victim2025-11-25
- GLOBALLeak Siteas victim2025-11-05