Social EngineeringManufacturingManufacturingPhishingTargetedIdentity (basic)LowContained

Wharf Resources (U.S.A.), Inc.

bd_17f63ba3e2b5ea7e · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 1, 2023

Filed

Aug 10, 2023

To disclose

23 weeks

Affected

3state residents only

Linked

2 filings

Confidence

66%

Wharf Resources (U.S.A.), Inc., a subsidiary of Coeur Mining, Inc., notified Montana residents of a data security incident in March 2023 where unusual activity in an email account led to unauthorized access to personal information. The company terminated access, investigated, notified the FBI, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 23 weeks / 162 days

Mar 1, 2023

Discovered

Aug 10, 2023

Filed

vs. sector median

+12 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

Maine State AGbd_6cfa119a3de0f8862023-08-10Verified

Name: COEUR MINING, INC.
norm: coeur mining

Name: Wharf Resources (U.S.A.), Inc.
norm: wharf resources
Industry: Manufacturingllm

Discovered: Mar 1, 2023
Materiality determined: —
Notification sent: Aug 9, 2023
Affected individuals: 3state-resident count only
Data types: Identity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of Investigation
Initial access: phishing_link

During the incident: Terminated access to that email account
Began an investigation
Notified the Federal Bureau of Investigation about this incident
Offering you complimentary identity theft protection services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(162 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 ↗

Maine State AGAug 10 · first

Montana State AGAug 10 · 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/Consumer-notification-letter-538.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 10, 2023
Raw hash: 110ff37c3a02f7406cd2abf048c22a38a6891510de96abc90bd3a42157a00f08

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCOEUR MINING, INC.

Victim entityWharf Resources (U.S.A.), Inc.

Incidentdiscovered Mar 1, 2023

Stated responseTerminated access to that email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov