Social EngineeringManufacturingManufacturingPhishingStolen CredentialsTargetedPIICredentialsLowContained

Coeur Alaska, Inc.

bd_08a64ff04188ab92 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 17, 2018

Filed

Feb 14, 2019

To disclose

8 weeks

Affected

31state residents only

Confidence

65%

Full breach record for Coeur Alaska, Inc. →

Coeur Alaska, Inc. notified Montana residents of a data breach involving unauthorized access to an employee email account. The incident occurred between Dec 14-17, 2018, and was discovered on Dec 17, 2018. The attacker likely accessed personal information via phishing. Coeur engaged forensic investigators, reset credentials, and offered 12 months of credit monitoring.

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Incident timeline

undetected · 3 days

discovery → filing · 8 weeks / 59 days

Dec 14, 2018

Begins

Dec 17, 2018

Discovered

Feb 14, 2019

Filed

vs. sector median

2 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed31 affectedView incident

Name: Coeur Alaska, Inc.
norm: coeur alaska

Name: Coeur Alaska, Inc.
norm: coeur alaska
Industry: Manufacturingllm

Discovered: Dec 17, 2018
Breach occurred: Dec 14, 2018 – Dec 17, 2018
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 8, 2019
Affected individuals: 31state-resident count only
Data types: PIICredentials
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Launched an internal investigation with the assistance of third-party forensic investigators
Ensuring the password for the affected email account was changed
Taking additional actions to strengthen the security of our email systems
Providing additional training to users on how to identify phishing scams
Providing access to 12 months of complimentary credit monitoring and identity restoration services with TransUnion
Changes made: Taking additional actions to strengthen the security of our email systems
Providing additional training to users on how to identify phishing scams
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(59 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/OCP/CON-Coeur-Regulator-Notice-MT-FINAL.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 14, 2019
Raw hash: d11b8490a277eaa62b8510f8143cee1dcecad0d59a678a10bae9741bd05ed08d

Reporting entityCoeur Alaska, Inc.

Victim entityCoeur Alaska, Inc.

Incidentdiscovered Dec 17, 2018

Stated responseLaunched an internal investigation with the assistance of third-party forensic investigators

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov