MalwareHealthcareHealthcareRansomwareData EncryptedSupply Chain (3P Vendor)Customer Data InvolvedPHIHealth (basic)Identity (basic)MediumContained

King County Public Hospital District No. 2

bd_c665ec48af1bbfeb · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 1, 2022

Filed

Apr 22, 2022

To disclose

7 weeks

Affected

19,092state residents only

Linked

2 filings

Confidence

71%

Full breach record for King County Public Hospital District No. 2 →3 incidents on file

King County Public Hospital District No. 2 (EvergreenHealth) reported a third-party vendor breach involving Eye Care Leaders, provider of the myCare Integrity EMR platform. Unauthorized access occurred on Dec 4, 2021, resulting in database deletion. Discovered March 1, 2022. 19,092 Washington residents notified on April 22, 2022. PHI including names, DOBs, and medical records potentially exposed.

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Washington clock⏱ WA AG >30d7 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 · 87 days

discovery → filing · 7 weeks / 52 days

Dec 4, 2021

Begins

Mar 1, 2022

Discovered

Apr 22, 2022

Filed

vs. sector median

5 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_8cd02c8ca6ce67962022-04-22Verified

Name: King County Public Hospital District No. 2
norm: king county public hospital district no 2

Name: King County Public Hospital District No. 2
norm: king county public hospital district no 2
Also named: King County Public Hospital District No. 2dba oflegal entity
EvergreenHealthdba oftrade name
Industry: Healthcarellm

Discovered: Mar 1, 2022
Breach occurred: Dec 4, 2021
Undetected for: 87 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 22, 2022
Affected individuals: 19,092state-resident count only
Data types: PHIHealth (basic)Identity (basic)
Data elements: NameDate of birthMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 0d
WA-stated discovery: Found after the fact
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: External
Regulator citations: Filed notification with Washington Attorney General
Third party: via Eye Care Leaders
Initial access: external_remote_services

During the incident: Established a dedicated, toll-free call center to answer questions
Examining its vendor relationship with Eye Care Leaders
Evaluating their security safeguards to help prevent a similar incident from happening in the future
Changes made: Examining its vendor relationship with Eye Care Leaders
Evaluating their security safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(52 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: 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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRApr 22 · first

Washington State AGApr 22 · first · this page

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.

Source URL: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA8878.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 22, 2022
Raw hash: 08dde3d2940f85dfb8c84f9c0b64d65fc12bd3a69918d17e4278f93b1f80f031

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityKing County Public Hospital District No. 2

Victim entityKing County Public Hospital District No. 2

Incidentdiscovered Mar 1, 2022

Stated responseEstablished a dedicated, toll-free call center to answer questions

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com