DisclosureLens
HackingHealthcareHealthcareSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDHighContained

MULTICARE HEALTH SYSTEM

bd_030edbbc365276bf · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 30, 2022

Filed

Dec 12, 2022

To disclose

10 weeks

Affected · nationwide

23,7123 in this filing

Linked

2 filings

Confidence

75%
Full breach record for MULTICARE HEALTH SYSTEM4 incidents on file

MultiCare Health System, Inc. reported a data breach to the Maine Attorney General, which was discovered on September 30, 2022. The breach, an external system hacking incident that occurred on May 18, 2022, affected 3 Maine residents. The compromised information included names and Social Security numbers. In response, MultiCare offered two years of Equifax credit monitoring services to the individuals affected. The notification to consumers was sent on October 25, 2022. The breach was reported by outside counsel representing a service provider involved in the incident.

Maine clockDiscovered Sep 30, 2022Filed with AG Dec 12, 202273d ME AG >30d10 weeks discovery → filing
AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 135 days
discovery → filing · 10 weeks / 73 days

May 18, 2022

Begins

Sep 30, 2022

Discovered

Dec 12, 2022

Filed

vs. sector median

2 wks faster

This filing is one of 2 about the same incident.View merged incident
A leak claim by everest about this victim predates this filing by 67 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings · 2 states

View merged incident ↗
Washington State AGJul 25 · first
Maine State AG+140d · this page

Pattern: first filing Jul 25 (WA), last Dec 12 (ME) — a 140-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.