MalwareProfessional ServicesProfessional ServicesRansomwareData EncryptedRansom DemandedIdentity (basic)Government IDFinancial accountMediumContained

TPG Architecture, LLP

bd_74278b21990608d2 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 5, 2024

Filed

May 31, 2024

To disclose

8 weeks

Affected

1state residents only

Linked

5 records

Confidence

65%

Full breach record for TPG Architecture, LLP →

TPG Architecture, LLP notified Montana residents of a ransomware attack on December 14, 2023. The incident exposed PII including names, SSNs, financial account numbers, and dates of birth. The company engaged third-party experts, secured systems, and offered 12 months of credit monitoring via TransUnion.

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Leak gap clock⏱ Leak >90d8 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 113 days

discovery → filing · 8 weeks / 56 days

Dec 14, 2023

Begins

Apr 5, 2024

Discovered

May 31, 2024

Filed

vs. sector median

12 wks faster

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

A leak claim by play about this victim was first seen 133 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteplaybd_93824da7d3a895542023-12-06 · +177dVerified by operator

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_b9265c1abf735e6e2024-05-31Verified
Indiana State AGbd_f53e6227185939062024-05-31Verified
Massachusetts State AGbd_6797df292100fd4a2024-06-04 · +4dVerified by operator

Name: TPG Architecture, LLP
norm: tpg architecture

Name: TPG Architecture, LLP
norm: tpg architecture
Industry: Professional Servicesllm

Discovered: Apr 5, 2024
Breach occurred: Dec 14, 2023
Undetected for: 113 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 31, 2024
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial

During the incident: Took immediate steps to secure our systems and investigate the nature and scope of the Incident
Worked with third-party experts
Arranged for TransUnion to provide 12 months of free credit monitoring and related services
Changes made: Implemented additional cybersecurity enhancements
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(56 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Maine State AGMay 31 · first

Indiana State AGMay 31 · first

Montana State AGMay 31 · first · this page

Massachusetts State AG+4d

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-1442.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 31, 2024
Raw hash: 9e3e4f982e050a988a236a9432e5201cfab14e16f1a9156df9e46d0601643594

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityTPG Architecture, LLP

Victim entityTPG Architecture, LLP

Incidentdiscovered Apr 5, 2024

Stated responseTook immediate steps to secure our systems and investigate the nature and scope of the Incident

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov