Social EngineeringFinancial ServicesFinancePhishingStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)LowContained

Argonaut Investments

bd_fd9ac305053ed6d3 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 6, 2022

Filed

Aug 22, 2022

To disclose

28 weeks

Affected

2state residents only

Linked

2 filings

Confidence

66%

Full breach record for Argonaut Investments →

Argonaut Investments notified Montana residents of a data security incident where an employee email account was accessed without authorization between Jan 7 and Feb 12, 2022. The company discovered the unusual activity on Feb 6, 2022, engaged external forensic experts, and is offering 12 months of credit monitoring via Kroll. Personal information contained in the email account was potentially exposed.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 30 days

discovery → filing · 28 weeks / 197 days

Jan 7, 2022

Begins

Feb 6, 2022

Discovered

Aug 22, 2022

Filed

vs. sector median

+19 wks slower

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

Massachusetts State AGbd_7f4787c9788f52102022-08-24 · +2dVerified

Name: Argonaut Investments
norm: argonaut investments

Name: Argonaut Investments
norm: argonaut investments
Industry: Financial Servicesllm

Discovered: Feb 6, 2022
Breach occurred: Jan 7, 2022 – Feb 12, 2022
Undetected for: 30 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Launched an investigation with the assistance of external experts
Implemented additional safeguards to help ensure the security of our email environment
Secured the services of Kroll to provide credit monitoring and identity theft restoration services
Changes made: Implemented additional safeguards to help ensure the security of our email environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 weeks(197 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 ↗

Montana State AGAug 22 · first · this page

Massachusetts State AG+2d

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-508.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 22, 2022
Raw hash: 46d3c0549686f17343b22d6113906b4149777eb2fd9cce1f67e47f2bfc29e1e6

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityArgonaut Investments

Victim entityArgonaut Investments

Incidentdiscovered Feb 6, 2022

Stated responseLaunched an investigation with the assistance of external experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov