secwatch.observer — SEC 8-K summary
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Issuer:     NUCOR CORP (NUE)
CIK:        0000073309
Form:       8-K/A
Filed at:   2025-06-20T23:59:59+00:00
Accession:  0001193125-25-143135
Event type: cyber
Sentiment:  negative
Materiality: 0.45
Item codes: 1.05
LLM model:  deepseek-v4-flash:cloud@v2

Nucor updates on May 2025 cyber incident; operations restored, no material impact
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- Threat actor illegally accessed IT systems; limited data exfiltrated; access temporarily restricted to some applications.
- Production at various facilities proactively halted as precaution; operations since restored.
- Company believes incident not material to business, financial condition, or results; no material impact expected.
- Remediation included incident response activation, system shutdown, backup restoration, external experts, and law enforcement notification.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/73309/000119312525143135/0001193125-25-143135-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/73309/000119312525143135/d926586d8ka.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-143135

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