HackingManufacturingManufacturingStolen CredentialsTargetedIdentity (basic)Government IDFinancial accountMediumContained

BELDEN INC.

bd_b0003efc0d9de31d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 12, 2020

Filed

Dec 14, 2020

To disclose

5 weeks

Affected

2state residents only

Linked

9 filings

Confidence

66%

Full breach record for BELDEN INC. →3 incidents on file

Belden Inc. notified Montana residents of a data incident detected on November 12, 2020. An external party accessed servers containing employee personal information, including names, SSNs, and bank account details. Belden engaged forensic experts and law enforcement (FBI/DHS) and offered 24 months of credit monitoring.

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Incident timeline

discovery → filing · 5 weeks / 32 days

Nov 12, 2020

Discovered

Dec 14, 2020

Filed

vs. sector median

6 wks faster

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Maine State AGbd_189033c89f5af7182020-12-14Candidate
Oregon State AGbd_191a2b2e9f0f73482020-12-14Verified
California State AGbd_43ef5bdc1cf5f6e42020-12-14Verified
Indiana State AGbd_7a1b7d7a7c3c77ca2020-12-14Verified

Show 4 more filings ↓up to 7d gap

Massachusetts State AGbd_83710412470012b42020-12-14Verified
California State AGbd_a2dfc0946b798fac2020-12-14Candidate
New Hampshire State AGbd_ab026bd97d1cef2a2020-12-15 · +1dVerified
New Hampshire State AGbd_2dbcaeeaa0e44afa2020-12-21 · +7dVerified

Name: BELDEN INC.
norm: belden
Domain: belden.com

Name: BELDEN INC.
norm: belden
Domain: belden.com
Industry: Manufacturingllm

Discovered: Nov 12, 2020
Materiality determined: —
Notification sent: Nov 24, 2020
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: working with regulatory and law enforcement officials, including the F.B.I. and Department of Homeland Security
Initial access: valid_credentials

During the incident: Triggered cybersecurity incident response plan
Deployed teams of internal IT specialists
Engaged leading third-party cybersecurity forensic experts and other advisors
Working with regulatory and law enforcement officials, including the F.B.I. and Department of Homeland Security
Engaged legal counsel
Continuously monitoring for any suspicious activity on our systems
Deployed additional resources to reinforce the security of our systems
Offering a complimentary twenty-four month membership of Experian IdentityWorks SM Credit 3B
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(32 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 7 states

View merged incident ↗

Maine State AGDec 14 · first

Oregon State AGDec 14 · first

California State AGDec 14 · first

Indiana State AGDec 14 · first

Massachusetts State AGDec 14 · first

California State AGDec 14 · first

Montana State AGDec 14 · first · this page

New Hampshire State AG+1d

New Hampshire State AG+7d

Pattern: first filing Dec 14 (ME), last Dec 21 (NH) — a 7-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/beldenSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 14, 2020
Raw hash: 23e72850965f77e4ebff0a0bb64b17e3e1d1653afc6b00ac60d6e12af286e9d8

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityBELDEN INC.

Victim entityBELDEN INC.

Incidentdiscovered Nov 12, 2020

Stated responseTriggered cybersecurity incident response plan

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov