HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Arthur Ventures Management LLC

bd_61e9a20d937e908d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 15, 2017

Filed

Jan 12, 2018

To disclose

28 days

Affected

2state residents only

Confidence

66%

Full breach record for Arthur Ventures Management LLC →

Arthur Ventures Management LLC notified Montana residents of an email account compromise discovered on December 15, 2017. Unauthorized parties accessed personal information including names, SSNs, and driver's license numbers. The company terminated credentials, engaged forensic investigators, and offered one year of Experian IdentityWorks.

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Incident timeline

discovery → filing · 28 days

Dec 15, 2017

Discovered

Jan 12, 2018

Filed

vs. sector median

5 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: Arthur Ventures Management LLC
norm: arthur ventures management

Name: Arthur Ventures Management LLC
norm: arthur ventures management
Industry: Financial Servicesllm

Discovered: Dec 15, 2017
Materiality determined: —
Notification sent: Jan 9, 2018
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Terminated the account credentials
Retained a leading forensic security firm to investigate and confirm the security of our email systems
Changes made: Offering a complimentary one-year membership of Experian IdentityWorks Credit 3B
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/Arthur-Ventures-Management-LLC.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 12, 2018
Raw hash: 486a26c5078376b47b938c1a18cdd018d589c8bedf9488e1ec2041164810b354

Reporting entityArthur Ventures Management LLC

Victim entityArthur Ventures Management LLC

Incidentdiscovered Dec 15, 2017

Stated responseTerminated the account credentials

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov