HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Anderson, Tackman & Company PLC

bd_e98b8598a59876ad · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 6, 2016

Filed

Aug 15, 2016

To disclose

6 weeks

Affected

135state residents only

Linked

4 filings

Confidence

66%

Anderson, Tackman & Company PLC notified clients in Montana that an unauthorized third party accessed their server on or before July 6, 2016. Compromised data included names, addresses, SSNs, and potentially bank account/routing numbers from tax returns. The firm engaged forensic investigators and offered 12 months of credit monitoring.

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Incident timeline

discovery → filing · 6 weeks / 40 days

Jul 6, 2016

Discovered

Aug 15, 2016

Filed

vs. sector median

12 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

California State AGbd_fe2eaab3b809c7542016-08-22 · +7dVerified
New Hampshire State AGbd_59c4479e73f349002016-08-04 · +11dVerified
Oregon State AGbd_528cd4bf2693f6182016-08-31 · +16dVerified by operator

Name: Anderson, Tackman & Company PLC
norm: anderson tackman

Name: Anderson, Tackman & Company PLC
norm: anderson tackman
Industry: Professional Servicesllm

Discovered: Jul 6, 2016
Materiality determined: —
Notification sent: Aug 12, 2016
Affected individuals: 135state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Filed notification with Montana Attorney General Office of Consumer Protection
Initial access: valid_credentials

During the incident: Engaged external cybersecurity professionals
Retained an independent computer forensic firm
Provided 12-month membership of Equifax Credit Watch Silver at no cost
Changes made: Continually evaluate and modify practices to enhance security and privacy
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(40 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 AGAug 4 · first

Montana State AG+11d · this page

California State AG+18d

Oregon State AG+27d

Pattern: first filing Aug 4 (NH), last Aug 31 (OR) — a 27-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/Anderson-Tackman-Co..pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 15, 2016
Raw hash: db7b8d352cf2874d0d46c2cdbb4791eae1df0e5ff3e3bfcaa096a6912a1b3abb

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityAnderson, Tackman & Company PLC

Victim entityAnderson, Tackman & Company PLC

Incidentdiscovered Jul 6, 2016

Stated responseEngaged external cybersecurity professionals

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov