{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-26-024890","form_type":"8-K","ticker":"HSTM","cik":"0001095565","company_name":"HEALTHSTREAM INC","filed_at":"2026-07-29T20:30:29+00:00","discovered_at":"2026-07-29T20:31:00.579765+00:00","generated_at":"2026-07-29T20:31:06.850847+00:00","sec_items":["8.01"],"event_type":"cyber","sentiment":"negative","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"HealthStream reports cybersecurity incident; employee and billing data accessed","bullets":["Unauthorized third party accessed limited files on corporate file server; no customer-facing systems compromised.","Employee information, billing data of certain customers/vendors, and corporate/legal info accessed/exfiltrated.","About 75 credentialing customers had data copied to corporate file servers; those customers notified.","No evidence of PHI access, no file encryption, no service interruption; investigation ongoing.","Company does not expect material adverse impact on business, operations, or financial results."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-26-024890","json":"https://secwatch.observer/filing/0001437749-26-024890.json","markdown":"https://secwatch.observer/filing/0001437749-26-024890.md","text":"https://secwatch.observer/filing/0001437749-26-024890.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1095565/000143774926024890/0001437749-26-024890-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1095565/000143774926024890/hstm20260729_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-29T20:31:06.850847+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"}