HackingManufacturingManufacturingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountEmploymentMediumContained

MINERALS TECHNOLOGIES INC.

bd_09c1399dd0f09fa2 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 22, 2020

Filed

Nov 24, 2020

To disclose

5 weeks

Affected

440state residents only

Linked

6 filings

Confidence

66%

Full breach record for MINERALS TECHNOLOGIES INC. →

Minerals Technologies, Inc. notified Montana residents of a security breach occurring on October 20, 2020, discovered on October 22, 2020. Unauthorized access compromised PII of employees and dependents, including SSNs, banking info, and salary data. MTI engaged forensic investigators, contained the breach, and provided 2 years of credit monitoring.

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Incident timeline

undetected · 2 days

discovery → filing · 5 weeks / 33 days

Oct 20, 2020

Begins

Oct 22, 2020

Discovered

Nov 24, 2020

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Indiana State AGbd_8b00f2daf73be4c32020-11-24Verified
Maine State AGbd_5a6400f8e2c161d22020-11-20 · +4dCandidate
Massachusetts State AGbd_c964e942f95922222020-11-30 · +6dVerified
California State AGbd_dc3b4b8d98ad0ceb2020-11-30 · +6dVerified

Show 1 more filing ↓up to 14d gap

New Hampshire State AGbd_f91330a0c51ab90e2020-12-08 · +14dVerified

Name: MINERALS TECHNOLOGIES INC.
norm: minerals technologies

Name: MINERALS TECHNOLOGIES INC.
norm: minerals technologies
Industry: Manufacturingllm

Discovered: Oct 22, 2020
Breach occurred: Oct 20, 2020
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 440state-resident count only
Data types: Identity (basic)Government IDFinancial accountEmployment
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Retained an IT firm to conduct a thorough forensic investigation
Ensured that the unauthorized individual no longer had access to our system
Investigate and contain the incident
Arranged to have TransUnion provide you and your adult dependents with two (2) years of complimentary credit monitoring and identity theft protection services
Provide your minor dependents... with access to Equifax’s Child Identity Monitoring service for two (2) years
Changes made: Implementing additional security measures
Strengthened our system
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(33 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Maine State AGNov 20 · first

Indiana State AG+4d

Montana State AG+4d · this page

Massachusetts State AG+10d

California State AG+10d

New Hampshire State AG+18d

Pattern: first filing Nov 20 (ME), last Dec 8 (NH) — a 18-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/mineralSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 24, 2020
Raw hash: 0da545b7c64588670bd1e85121b94db5a0141927f75e98d90b2de4513668628a

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMINERALS TECHNOLOGIES INC.

Victim entityMINERALS TECHNOLOGIES INC.

Incidentdiscovered Oct 22, 2020

Stated responseRetained an IT firm to conduct a thorough forensic investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov