secwatch.observer — SEC 8-K summary ====================================== Issuer: AdaptHealth Corp. (AHCO) CIK: 0001725255 Form: 8-K Filed at: 2026-07-02T20:01:45+00:00 Accession: 0001104659-26-080297 Event type: cyber Sentiment: negative Materiality: 0.75 Item codes: 1.05 LLM model: deepseek-v4-flash:cloud@v2 AdaptHealth reports material cybersecurity incident; patient data exfiltrated via social engineering -------------------------------------------------------------------------------- - Threat actor gained unauthorized access to cloud-based business applications including patient management systems and document storage. - Exfiltrated data includes passwords for insurance billing and patient personally identifiable and protected health information. - Incident resulted from social engineering attack on a third-party contractor; compromised user session disabled and credentials reset. - Company determined incident material on June 27, 2026; investigation ongoing with external forensics. - No material operational impact to date; full financial impact including remediation and legal costs not yet determinable. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1725255/000110465926080297/0001104659-26-080297-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1725255/000110465926080297/ahco-20260627x8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-080297 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer