Social EngineeringGovernmentGovernmentPhishingBECCustomer Data InvolvedEmployee Data InvolvedPIIPHIIdentity (basic)Government IDMediumContained

Rock County Human Services Department

bd_a05bbeaa6ed163c0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 14, 2022

Filed

Sep 12, 2022

To disclose

13 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for Rock County Human Services Department →

Rock County Human Services Department (WI) notified Montana residents of a business email compromise (BEC) incident. A phishing campaign in Feb 2022 led to unauthorized email access. Data of GETS program participants (minors) was inadvertently shared by WI Dept of Health Services and accessed. PII/PHI including SSNs were exposed. Response included forensic investigation, law enforcement notification, password resets, and geo-fencing. Credit monitoring offered.

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Incident timeline

undetected · 106 days

discovery → filing · 13 weeks / 90 days

Feb 28, 2022

Begins

Jun 14, 2022

Discovered

Sep 12, 2022

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Maine State AGbd_4e2c1eafed0f07bd2022-09-21 · +9dVerified by operator
HHS OCRbd_6e02c59920bac33c2022-08-12 · +31dCandidate

Name: Rock County Human Services Department
norm: rock county human services department

Name: Rock County Human Services Department
norm: rock county human services department
Industry: Governmentllm

Discovered: Jun 14, 2022
Breach occurred: Feb 28, 2022
Undetected for: 106 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: PIIPHIIdentity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Engaged a team of third-party cybersecurity experts to work alongside inhouse experts to launch an investigation and fortify our systems
Notified law enforcement
Changes made: Department-wide password reset
Extension and deployment of additional sophisticated geo-fencing
Creation of a plan for bolstering monthly phishing and other cybersecurity trainings for employees
Accelerated existing plans to implement network monitoring programs
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(90 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

HHS OCRAug 12 · first

Montana State AG+31d · this page

Maine State AG+40d

Pattern: first filing Aug 12 (WI), last Sep 21 (ME) — a 40-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-559.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 12, 2022
Raw hash: 165845c8aac884a1a5e8deb7f4c78454a6f978cc4988210d6e57ca8f7d94f206

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityRock County Human Services Department

Victim entityRock County Human Services Department

Incidentdiscovered Jun 14, 2022

Stated responseEngaged a team of third-party cybersecurity experts to work alongside inhouse experts to launch an investigation and fortify our systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov