HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)MediumContained

Armstrong Consultants

bd_1208c6d7b62034a7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 30, 2023

Filed

Dec 20, 2023

To disclose

7 weeks

Affected

1state residents only

Linked

2 filings

Confidence

64%

Full breach record for Armstrong Consultants →2 incidents on file

Armstrong Consultants notified Montana residents of unauthorized access to systems between Oct 13-29, 2023, discovered Oct 30, 2023. Data included names, SSNs, DOBs, passports, driver's licenses, tax IDs, financial accounts, signatures, and medical info. Responded with forensic investigation, law enforcement coordination, and 12 months of Experian credit monitoring.

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Incident timeline

undetected · 17 days

discovery → filing · 7 weeks / 51 days

Oct 13, 2023

Begins

Oct 30, 2023

Discovered

Dec 20, 2023

Filed

vs. sector median

10 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitedispossessorbd_1b26b1d0c964f6cc2023-11-01 · +49dCandidate

Name: Armstrong Consultants
norm: armstrong consultants
Domain: armstrongconsultants.com

Name: Armstrong Consultants
norm: armstrong consultants
Domain: armstrongconsultants.com
Industry: Professional Servicesllm

Discovered: Oct 30, 2023
Breach occurred: Oct 13, 2023 – Oct 29, 2023
Undetected for: 17 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 20, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)
Data elements: Date of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: prompt and continued correspondence with federal law enforcement authorities
Initial access: valid_credentials

During the incident: Launched an investigation with outside assistance
Prompt and continued correspondence with federal law enforcement authorities
Providing you with 12 months of complimentary access to credit monitoring and identity restoration services through Experian
Changes made: Restored the operability of impacted computer systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(51 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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-960.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 20, 2023
Raw hash: 71a03e6fbbab5816d004793969f82b31a6a94defc8fadeb7ff2959d521f48715

Linked disclosures

Ransomware claims (1)

Reporting entityArmstrong Consultants

Victim entityArmstrong Consultants

Incidentdiscovered Oct 30, 2023

Stated responseLaunched an investigation with outside assistance

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov