HackingHealthcareHealthcareTargetedIdentity (basic)Government IDPIIMediumContained

Petaluma Health Center

bd_c33ded56f74f4a62 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 14, 2023

Filed

Apr 28, 2023

To disclose

6 weeks

Affected

1state residents only

Linked

10 filings

Confidence

65%

Full breach record for Petaluma Health Center →2 incidents on file

Petaluma Health Center notified Montana residents of a March 14, 2023 network security incident where an unauthorized party gained access to the network. Affected data included names, addresses, SSNs, driver's license numbers, passport numbers, DOBs, and health insurance info for employees/board members. PHC engaged forensic investigators, secured the network, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 6 weeks / 45 days

Mar 14, 2023

Begins

Mar 14, 2023

Discovered

Apr 28, 2023

Filed

vs. sector median

6 wks faster

This filing is one of 10 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitekarakurtbd_0ffdbcef2ecd77f12023-04-12 · +15dVerified by operator

Regulatory filings (8) · sorted by filing gap

Maine State AGbd_b5c781e6b089596b2023-04-28Verified
California State AGbd_bdc46d25c14edb8f2023-04-28Verified
Indiana State AGbd_6c999b9ec6ec853f2023-04-24 · +4dCandidate
Montana State AGbd_6c47d4d37e101db42023-06-01 · +34dVerified

Show 4 more filings ↓up to 38d gap

California State AGbd_7327f7af51c2e39f2023-06-02 · +35dVerified
HHS OCRbd_79efc5514452341c2023-06-02 · +35dVerified by operator
Oregon State AGbd_a1ea4f5d3b6c44e82023-06-02 · +35dVerified
Massachusetts State AGbd_8ab10097ba8d295e2023-06-05 · +38dVerified

Name: Petaluma Health Center
norm: petaluma health center

Name: Petaluma Health Center
norm: petaluma health center
Industry: Healthcarellm

Discovered: Mar 14, 2023
Breach occurred: Mar 14, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 24, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDPII
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Shut off all access to the network
Engaged a specialized third-party forensic incident response firm to assist with securing the network environment and investigating the extent of unauthorized activity
Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Changes made: Reviewing and enhancing our technical safeguards to prevent a similar incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(45 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 6 states

View merged incident ↗

Indiana State AGApr 24 · first

Maine State AG+4d

California State AG+4d

Montana State AG+4d · this page

Montana State AG+38d

California State AG+39d

HHS OCR+39d

Oregon State AG+39d

Massachusetts State AG+42d

Pattern: first filing Apr 24 (IN), last Jun 5 (MA) — a 42-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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-227.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 28, 2023
Raw hash: c8084ba5ed53685a8ac2d6963af579d806f45546a7a026d99ef9e287867e61aa

Linked disclosures

Ransomware claims (1)

Regulatory filings (8) · sorted by filing gap

Reporting entityPetaluma Health Center

Victim entityPetaluma Health Center

Incidentdiscovered Mar 14, 2023

Stated responseShut off all access to the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov