Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedCredentialsFinancial accountHealth (basic)Identity (basic)Government IDPHIHighContained

Fred Hutchinson Cancer Center

bd_218bb39b12e1d7be · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 26, 2022

Filed

May 25, 2022

To disclose

9 weeks

Affected

79,814state residents only

Linked

2 filings

Confidence

69%

Full breach record for Fred Hutchinson Cancer Center →4 incidents on file

Fred Hutchinson Cancer Center reported a supplemental breach affecting 79,814 Washington residents. An unauthorized third party accessed an employee's email account between March 25-26, 2022, likely via phishing. Data included PHI, SSNs, and financial info. Notices mailed Oct 21, 2022.

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Washington clock⏱ WA AG >30d9 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 · 1 days

discovery → filing · 9 weeks / 60 days

Mar 25, 2022

Begins

Mar 26, 2022

Discovered

May 25, 2022

Filed

vs. sector median

on median

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Montana State AGbd_0b21674a76d313db2022-05-25Candidate

Name: Polsinelli PC
norm: polsinelli

Name: Fred Hutchinson Cancer Center
norm: fred hutchinson cancer center
Domain: fredhutch.org
Industry: Healthcarellm

Discovered: Mar 26, 2022
Breach occurred: Mar 25, 2022 – Mar 26, 2022
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Oct 21, 2022
Affected individuals: 79,814state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)Credentials
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthHealth insurance ID
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Phishing
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified HHS-OCRNotified Washington Attorney General
Initial access: phishing_link

During the incident: Secured the involved email account to prevent further access
Forced a credential reset to eject any suspected unauthorized individuals
Engaged a leading forensic security firm to further investigate
Notified federal law enforcement
Provided a preliminary notification to HHS-OCR and the Washington Attorney General
Mailed notification letters to affected individuals
Offered complimentary credit monitoring and identity theft protection
Changes made: Implementing new technical safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(60 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 · 2 states

View merged incident ↗

Montana State AGMay 25 · first

Washington State AGMay 25 · 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/BreachA10380.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 25, 2022
Raw hash: 5442bba4dca864f8173ffdc3ce6dc6a0902e32e7b3c7c785da9ac4d4a90d8550

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityPolsinelli PC

Victim entityFred Hutchinson Cancer Center

Incidentdiscovered Mar 26, 2022

Stated responseSecured the involved email account to prevent further access

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com