HackingManufacturingManufacturingStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)Government IDMediumContained

American Chemet Corporation

bd_cb71703eda7297bc · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 22, 2022

Filed

Oct 20, 2022

To disclose

28 days

Affected

330state residents only

Linked

2 filings

Confidence

66%

Full breach record for American Chemet Corporation →

American Chemet Corporation notified Montana residents of a security incident on September 8, 2022, where an unauthorized party accessed documents containing personal information. The company engaged forensic investigators and offers one year of identity monitoring via Kroll.

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Incident timeline

undetected · 14 days

discovery → filing · 28 days

Sep 8, 2022

Begins

Sep 22, 2022

Discovered

Oct 20, 2022

Filed

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_d4e4fb94b0cd9e712022-10-20Verified

Name: American Chemet Corporation
norm: american chemet

Name: American Chemet Corporation
norm: american chemet
Industry: Manufacturingllm

Discovered: Sep 22, 2022
Breach occurred: Sep 8, 2022
Undetected for: 14 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 330state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Commenced a prompt and thorough investigation
Took steps to contain the incident
Engaged external cybersecurity professionals
Secured the services of Kroll to provide identity monitoring
Changes made: Continually evaluate and modify practices and internal controls to enhance security and privacy
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.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Indiana State AGOct 20 · first

Montana State AGOct 20 · 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-630.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 20, 2022
Raw hash: 7432f69cb805f732ca536aa2ccf9d6302d7f5fdcc3ae8c000d7a1a450db4e046

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityAmerican Chemet Corporation

Victim entityAmerican Chemet Corporation

Incidentdiscovered Sep 22, 2022

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov