{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-119311","form_type":"8-K","ticker":"NUE","cik":"0000073309","company_name":"NUCOR CORP","filed_at":"2025-05-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.130749+00:00","generated_at":"2026-05-21T11:29:18.414536+00:00","sec_items":["1.05"],"event_type":"cyber","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"medium","headline":"Nucor reports cybersecurity incident; halts some production, now restarting","bullets":["Unauthorized third-party access to IT systems detected; incident response plan activated.","Potentially affected systems taken offline; certain production operations temporarily halted.","Restarting affected operations; investigation ongoing with external experts and federal law enforcement.","No specifics on data compromise, customer impact, or financial exposure yet; company monitoring materiality."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-119311","json":"https://secwatch.observer/filing/0001193125-25-119311.json","markdown":"https://secwatch.observer/filing/0001193125-25-119311.md","text":"https://secwatch.observer/filing/0001193125-25-119311.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/73309/000119312525119311/0001193125-25-119311-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73309/000119312525119311/d795264d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T11:29:18.414536+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}