HackingIdentity (basic)Government IDFinancial accountMediumContained

BELDEN INC.

bd_2dbcaeeaa0e44afa · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 12, 2020

Filed

Dec 21, 2020

To disclose

6 weeks

Affected

30state residents only

Linked

9 filings

Confidence

67%

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

Belden Inc. notified the New Hampshire Attorney General of a data security incident affecting 30 state residents. On November 12, 2020, Belden detected unusual activity on company servers, leading to the discovery of unauthorized access by an external party. The breach exposed personal information of current and former employees, including names, birthdates, SSNs, and bank account details. Belden engaged forensic experts, law enforcement (FBI, DHS), and legal counsel, and offered 24 months of credit monitoring to affected individuals.

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Incident timeline

discovery → filing · 6 weeks / 39 days

Nov 12, 2020

Discovered

Dec 21, 2020

Filed

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

New Hampshire State AGbd_ab026bd97d1cef2a2020-12-15 · +6dVerified
Maine State AGbd_189033c89f5af7182020-12-14 · +7dCandidate
Oregon State AGbd_191a2b2e9f0f73482020-12-14 · +7dVerified
California State AGbd_43ef5bdc1cf5f6e42020-12-14 · +7dVerified

Show 4 more filings ↓up to 7d gap

Indiana State AGbd_7a1b7d7a7c3c77ca2020-12-14 · +7dVerified
Massachusetts State AGbd_83710412470012b42020-12-14 · +7dVerified
California State AGbd_a2dfc0946b798fac2020-12-14 · +7dCandidate
Montana State AGbd_b0003efc0d9de31d2020-12-14 · +7dVerified

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

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

Discovered: Nov 12, 2020
Materiality determined: —
Notification sent: Dec 14, 2020
Affected individuals: 30state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 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: exploit_public_facing

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 to help us notify appropriate regulatory authorities
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 Credit 3B
Changes made: Stopped further unauthorized access of personal data on our servers
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(39 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

New Hampshire State AG+1d

New Hampshire State AG+7d · this page

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://mm.nh.gov/files/uploads/doj/remote-docs/belden-20201221.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 21, 2020
Raw hash: e589a83b5ce67fc56e0c13528083c1a6f2c20f3ace1cde7667252efb2d34f8d8

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 provenancemm.nh.gov