MalwareHealthcareHealthcareRansomwareData EncryptedData ExfiltratedCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Government IDFinancial accountHealth (basic)PHIHighContained

Providence WA Anesthesia Services PC

bd_e30373c6d1c0c24c · schema v1 · pii pii-v1

Severity

High

Discovered

Jul 11, 2022

Filed

Oct 25, 2022

To disclose

15 weeks

Affected

56,578state residents only

Linked

4 filings

Confidence

69%

Full breach record for Providence WA Anesthesia Services PC →

Providence WA Anesthesia Services PC reported a ransomware cyberattack affecting 56,578 Washington residents. Suspicious activity was identified on July 11, 2022, impacting systems managed by a third-party MSO. Compromised data included PHI, SSNs, DOBs, driver's licenses, and financial info. Notices were sent on October 24, 2022.

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Washington clock✗ WA AG >90d15 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 · 2 days

discovery → filing · 15 weeks / 106 days

Jul 9, 2022

Begins

Jul 11, 2022

Discovered

Oct 25, 2022

Filed

vs. sector median

+4 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_da9b8e9c19ba82922022-10-25Verified
Montana State AGbd_324c3d56365715822022-10-24 · +1dCandidate
HHS OCRbd_e9e6c369255001df2022-09-23 · +32dCandidate

Name: CLARK HILL PLC
norm: clark hill

Name: Providence WA Anesthesia Services PC
norm: providence wa anesthesia
Industry: Healthcarellm

Discovered: Jul 11, 2022
Breach occurred: Jul 9, 2022 – Jul 11, 2022
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 24, 2022
Affected individuals: 56,578state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: notified the Department of Health and Human Services Office of Civil Rights
Initial access: exploit_public_facing

During the incident: Implemented its incident response protocols
Disconnected all systems
Engaged external cybersecurity experts to conduct a forensic investigation
Conducted a global password reset
Tightened firewall restrictions
Implemented endpoint threat detection and response monitoring software on workstations and servers
Offered 12 months of credit monitoring and identity protection services through IDX
Changes made: Conducted a global password reset
Tightened firewall restrictions
Implemented endpoint threat detection and response monitoring software on workstations and servers
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(106 days from discovery to filing)
Compliance flags: WA AG >90d
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 · 4 filings · 4 states

View merged incident ↗

HHS OCRSep 23 · first

Montana State AG+31d

Maine State AG+32d

Washington State AG+32d · this page

Pattern: first filing Sep 23 (NY), last Oct 25 (WA) — a 32-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.

Source URL: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA15812.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 25, 2022
Raw hash: 51c18d9ded6c8a81ca3dc632709348c7811d28605136de0848bcbb59e5697c56

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCLARK HILL PLC

Victim entityProvidence WA Anesthesia Services PC

Incidentdiscovered Jul 11, 2022

Stated responseImplemented its incident response protocols

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com