HackingHealthcareHealthcareStolen CredentialsCapture Stored DataData ExfiltratedTargetedPIIIdentity (basic)Health (basic)PHILowContained

Kitsap Mental Health Services

bd_bc0becac2d6fd9a4 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 17, 2024

Filed

May 14, 2025

To disclose

30 weeks

Affected

35state residents only

Linked

7 filings

Confidence

65%

Full breach record for Kitsap Mental Health Services →2 incidents on file

Kitsap Mental Health Services notified Montana residents of a data incident detected on October 17, 2024. Unauthorized access occurred between September 17 and October 19, 2024, involving the download of personal and health information. The organization engaged forensic experts, reported to law enforcement, and offered 12 months of credit monitoring.

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Incident timeline

undetected · 30 days

discovery → filing · 30 weeks / 209 days

Sep 17, 2024

Begins

Oct 17, 2024

Discovered

May 14, 2025

Filed

vs. sector median

+17 wks slower

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Nebraska State AGbd_10bbb22ed020851d2025-05-14Verified
Nebraska State AGbd_18b1b0018630e5b82025-05-14Verified
Vermont State AGbd_54084f244cd812bb2025-05-14Verified
New Hampshire State AGbd_63f8430ffefcd3642025-05-14Verified

Show 2 more filings ↓up to 2d gap

Massachusetts State AGbd_ea0fcd10e974b8932025-05-14Verified
Indiana State AGbd_e9d1cdc6b8c56fa02025-05-12 · +2dVerified

Name: Kitsap Mental Health Services
norm: kitsap mental health

Name: Kitsap Mental Health Services
norm: kitsap mental health
Industry: Healthcarellm

Discovered: Oct 17, 2024
Breach occurred: Sep 17, 2024 – Oct 19, 2024
Undetected for: 30 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 14, 2025
Affected individuals: 35state-resident count only
Data types: PIIIdentity (basic)Health (basic)PHI
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Reported to law enforcementReported this Incident to relevant government agencies
Initial access: valid_credentials

During the incident: Changed passwords
Deployed tools for increased monitoring
Reported to law enforcement
Engaged data security and privacy experts to assist
Implemented endpoint detection and response monitoring
Added further technical safeguards to existing protections
Brought systems back online as quickly and securely as possible
Continued to work with leading privacy and security firms
Reported this Incident to relevant government agencies
Changes made: Implemented endpoint detection and response monitoring
Added further technical safeguards to existing protections
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 · 7 filings · 6 states

View merged incident ↗

Indiana State AGMay 12 · first

Nebraska State AG+2d

Vermont State AG+2d

New Hampshire State AG+2d

Massachusetts State AG+2d

Montana State AG+2d · 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/2025/12/Consumer-notification-letter-6.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 14, 2025
Raw hash: 270fca8102504a145c8bebe93ec4e228e159242c07873c81e8c13ded8a82102e

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityKitsap Mental Health Services

Victim entityKitsap Mental Health Services

Incidentdiscovered Oct 17, 2024

Stated responseChanged passwords

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov