HackingProfessional ServicesProfessional ServicesStolen CredentialsTargetedData ExfiltratedIdentity (basic)Government IDFinancial accountMediumContained

Gustafson & Company, LLC.

bd_caac75db67371439 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 22, 2020

Filed

May 21, 2020

To disclose

17 weeks

Affected

3state residents only

Linked

3 filings

Confidence

66%

Full breach record for Gustafson & Company, LLC. →

Gustafson & Company, LLC notified clients of a cybersecurity incident where an unauthorized third party accessed its network on January 22, 2020. The breach resulted in the exfiltration of personal information including names, SSNs, and financial data, leading to fraudulent tax filings. The firm engaged forensic investigators and notified the IRS and law enforcement.

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Incident timeline

discovery → filing · 17 weeks / 120 days

Jan 22, 2020

Begins

Jan 22, 2020

Discovered

May 21, 2020

Filed

vs. sector median

2 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Oregon State AGbd_0e475fe99d42cebf2020-05-21Candidate
Massachusetts State AGbd_f142acaf10bad28d2020-05-21Verified

Name: Gustafson & Company, LLC.
norm: gustafson

Name: Gustafson & Company, LLC.
norm: gustafson
Industry: Professional Servicesllm

Discovered: Jan 22, 2020
Breach occurred: Jan 22, 2020
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: contacted the IRSnotified law enforcement
Initial access: valid_credentials

During the incident: Conducted an internal investigation
Hired a leading computer forensics firm to examine our network
Contacted the IRS to notify them of the situation
Put added protections on your tax records
Notified law enforcement
Changes made: Strengthening the security of our computer systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(120 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Oregon State AGMay 21 · first

Massachusetts State AGMay 21 · first

Montana State AGMay 21 · 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/OCP/General-Notice-93.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 21, 2020
Raw hash: c3c4cd4c1de43ea2265c39a95df04ad6eca1f60ca382ec1c9e9e58feb58423e8

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityGustafson & Company, LLC.

Victim entityGustafson & Company, LLC.

Incidentdiscovered Jan 22, 2020

Stated responseConducted an internal investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov