Social EngineeringHealthcareHealthcarePhishingStolen CredentialsData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowResolved

Seattle Cancer Care Alliance

bd_ae2de937fab11297 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 26, 2022

Filed

Oct 21, 2022

To disclose

30 weeks

Affected

866state residents only

Linked

2 filings

Confidence

65%

Full breach record for Seattle Cancer Care Alliance →2 incidents on file

Fred Hutchinson Cancer Center (formerly Seattle Cancer Care Alliance) notified individuals of a data breach involving unauthorized access to a business email account. The incident occurred March 25-26, 2022, and was discovered on March 26, 2022. Personal information including names and contact details was accessed. The organization engaged forensic investigators, notified law enforcement, and offered one year of credit monitoring.

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Incident timeline

undetected · 1 days

discovery → filing · 30 weeks / 209 days

Mar 25, 2022

Begins

Mar 26, 2022

Discovered

Oct 21, 2022

Filed

vs. sector median

+19 wks slower

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

New Hampshire State AGbd_9834bbebd26942772022-10-20 · +1dVerified

Name: Seattle Cancer Care Alliance
norm: seattle cancer care alliance

Name: Seattle Cancer Care Alliance
norm: seattle cancer care alliance
Also named: Seattle Cancer Care Alliancedba oflegal entity
Fred Hutchinson Cancer Centerdba oftrade name
Industry: Healthcarellm

Discovered: Mar 26, 2022
Breach occurred: Mar 25, 2022 – Mar 26, 2022
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Sep 9, 2022
Affected individuals: 866state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: notified federal law enforcement
Initial access: phishing_link

During the incident: Secured the account to prevent further access
Began an internal investigation
Retained a leading forensic cybersecurity firm to aid in our investigation
Engaged a specialized document review team to conduct a comprehensive review
Notified federal law enforcement of the incident
Offering you a complimentary one-year membership of Experian IdentityWorks
Changes made: Taken steps to help prevent a similar incident from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 30 weeks(209 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

New Hampshire State AGOct 20 · first

Montana State AG+1d · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-636.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 21, 2022
Raw hash: 8e9cbd288bc247f12a6bd618134d6ff625cc3467e719358c876bf16c77091b2a

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entitySeattle Cancer Care Alliance

Victim entitySeattle Cancer Care Alliance

Incidentdiscovered Mar 26, 2022

Stated responseSecured the account to prevent further access

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov