DisclosureLens
CALIFORNIAMalwareHealthcareHealthcareRansomwareLossBusiness Associate (HIPAA)Customer Data InvolvedData EncryptedRansom DemandedData DestroyedHealth (basic)Medium

Marin Healthcare District

bd_fd6c4403d9945f7c · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Sep 27, 2016

To disclose

—

Affected

2,292

Confidence

50%
Full breach record for Marin Healthcare District →

Marin Healthcare District reported to HHS on September 27, 2016, a hacking incident affecting 2,292 individuals. The incident involved a ransomware attack on the systems of its business associate, Marin Medical Practice Concepts, Inc. Although a forensic investigation found no evidence that patient information was accessed or transferred, a backup system failed during the restoration process. This failure resulted in the loss of protected health information created between July 11, 2016, and July 26, 2016, including vital signs, clinical histories, and physician-patient communications.

HIPAA clock✓ HHS notified
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline

Jul 11, 2016

Begins

Sep 27, 2016

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2,292 affectedView incident

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.