AdaptHealth Corp. filed an 8-K on June 27, 2026, disclosing a material cybersecurity incident. A threat actor gained unauthorized access to cloud-based business applications, including patient management systems, via a social engineering attack compromising a third-party contractor's session. The actor exfiltrated data including insurance billing passwords, PII, and PHI. The incident has been contained, law enforcement was notified, and the scope of affected individuals remains undetermined.