{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-088802","form_type":"8-K","ticker":"WDC","cik":"0000106040","company_name":"WESTERN DIGITAL CORP","filed_at":"2023-04-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:37.811677+00:00","generated_at":"2026-06-17T06:46:14.009469+00:00","sec_items":["8.01","9.01"],"event_type":"cyber","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Western Digital discloses network security incident; unauthorized access, data possibly taken","bullets":["Incident discovered on March 26, 2023; unauthorized third party gained access to systems.","Investigation ongoing with outside security experts and law enforcement coordination.","Company took systems and services offline; restoring impacted infrastructure, causing business disruption.","Unauthorized party obtained certain data; nature and scope of data under investigation.","No specifics on customer or financial data impact disclosed yet."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-088802","json":"https://secwatch.observer/filing/0001193125-23-088802.json","markdown":"https://secwatch.observer/filing/0001193125-23-088802.md","text":"https://secwatch.observer/filing/0001193125-23-088802.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/106040/000119312523088802/0001193125-23-088802-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/106040/000119312523088802/d453102d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T06:46:14.009469+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"}