HackingOtherData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)MinorMediumContained

Holstein Association USA, Inc.

bd_fd79fe9bec1d60da · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 5, 2024

Filed

Jun 28, 2024

To disclose

8 weeks

Affected

3state residents only

Linked

5 filings

Confidence

66%

Full breach record for Holstein Association USA, Inc. →3 incidents on file

Holstein Association USA, Inc. notified Montana residents of a data breach detected on May 5, 2024. An unauthorized third party accessed and exfiltrated personal information, including names, SSNs, driver's licenses, and health plan data. The investigation was completed on June 18, 2024. Affected individuals were offered 24 months of identity monitoring via Kroll.

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Incident timeline

discovery → filing · 8 weeks / 54 days

May 5, 2024

Discovered

Jun 28, 2024

Filed

vs. sector median

on median

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_e763c2f002828e602024-05-08 · +50dVerified

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_9defc24408fa1b8e2024-06-28Verified
Vermont State AGbd_b48c7f6f7ca9a0902024-06-28Verified
New Hampshire State AGbd_b6c515a6265fc25e2024-06-27 · +1dVerified by operator

Name: Holstein Association USA, Inc.
norm: holstein association usa

Name: Holstein Association USA, Inc.
norm: holstein association usa
Industry: Otherllm

Discovered: May 5, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Minor
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1119 Automated Collection
Threat actor: External
Regulator citations: Notified law enforcement

During the incident: Notified law enforcement
Retained leading cybersecurity experts to assist in evaluating and addressing the situation
Secured the services of Kroll to provide identity monitoring at no cost to you for 24-months
Changes made: Updating certain software systems
Deploying use of multi-factor authentication
Conducting firewall hardening
Implementing a password reset and a strong password policy
Updating access controls to reduce the risk of a cyberattack occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(54 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

New Hampshire State AGJun 27 · first

Indiana State AG+1d

Vermont State AG+1d

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-1513.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 28, 2024
Raw hash: 2f57ecdddae254cd26e23e01216c696e9609d3697ab6ee5f079a6ece4b45ed4a

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityHolstein Association USA, Inc.

Victim entityHolstein Association USA, Inc.

Incidentdiscovered May 5, 2024

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov