Social EngineeringHealthcareTechnologyHealthcarePhishingStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Health (basic)PHILowContained

WhidbeyHealth

bd_019eb547a975cbb6 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 4, 2024

Filed

Feb 10, 2025

To disclose

10 weeks

Affected

551state residents only

Confidence

71%

Full breach record for WhidbeyHealth →

CPS Solutions, LLC reported a phishing incident affecting WhidbeyHealth patients in Washington. Unauthorized access to an employee's O365 email occurred Dec 2-4, 2024, discovered Dec 4, 2024. 551 residents affected with PHI (name, DOB, clinical info, MRN). Notifications sent Feb 10, 2025.

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Washington clock⏱ WA 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 · 2 days

discovery → filing · 10 weeks / 68 days

Dec 2, 2024

Begins

Dec 4, 2024

Discovered

Feb 10, 2025

Filed

vs. sector median

3 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed551 affectedView incident

Name: CPS Solutions, LLC
norm: cps solutions

Name: WhidbeyHealth
norm: whidbeyhealth
Domain: whidbeyhealth.org
Industry: HealthcarellmTechnologyllm

Discovered: Dec 4, 2024
Breach occurred: Dec 2, 2024 – Dec 4, 2024
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 10, 2025
Affected individuals: 551state-resident count only
Data types: Identity (basic)Health (basic)PHI
Data elements: NameDate of birthMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Forced a password reset
Disabled the email account
Took other appropriate steps to prevent further unauthorized access
Launched an investigation to determine the potential scope and impact
Security and monitoring capabilities are being enhanced
Systems are being hardened
Offering potentially affected individuals two (2) years of free credit monitoring and identity protection services through IDX
Changes made: Security and monitoring capabilities are being enhanced
Systems are being hardened
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(68 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.

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/BreachA32214.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 10, 2025
Raw hash: b9dd12aeac0d6c5c13ddc2ce076b27c14f656f72b69833d5341af7e844d178d3

Reporting entityCPS Solutions, LLC

Victim entityWhidbeyHealth

Incidentdiscovered Dec 4, 2024

Stated responseForced a password reset

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com