PhysicalGovernmentGovernmentIdentity (basic)Government IDFinancial accountMediumResolved

Regional Income Tax Agency

bd_b0c4298c97df7e86 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 10, 2015

Filed

Dec 31, 2015

To disclose

7 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

66%

Full breach record for Regional Income Tax Agency →

Regional Income Tax Agency (Montana) disclosed a data security incident on November 10, 2015, involving a missing DVD containing backup copies of income tax documents. The missing media contained names, addresses, Social Security numbers, and potentially dates of birth and financial information for individuals who filed municipal income taxes on or before June 2012. The Agency engaged Experian to provide one year of free credit monitoring and identity protection. No misuse of information was identified.

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Incident timeline

discovery → filing · 7 weeks / 51 days

Nov 10, 2015

Discovered

Dec 31, 2015

Filed

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Washington State AGbd_a02973b33457a08a2015-12-31Candidate

Name: Regional Income Tax Agency
norm: regional income tax agency

Name: Regional Income Tax Agency
norm: regional income tax agency
Industry: Governmentllm

Discovered: Nov 10, 2015
Materiality determined: —
Notification sent: Dec 8, 2015
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unknown
MITRE ATT&CK: T1052 Exfiltration Over Physical Medium

During the incident: Engaged Experian to offer credit monitoring and identity protection for one year at no cost
Changes made: Implemented a more secure process for backing up this type of data
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.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Washington State AGDec 31 · first

Montana State AGDec 31 · first · 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/Regional-Income-Tax-Agency.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 31, 2015
Raw hash: 9046a43f5e641b3df804a15f88b17a695136caad0090e77c5a9d124e31a989f3

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityRegional Income Tax Agency

Victim entityRegional Income Tax Agency

Incidentdiscovered Nov 10, 2015

Stated responseEngaged Experian to offer credit monitoring and identity protection for one year at no cost

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov