AdaptHealth confirmed that a cyberattack exposed the personal and health information of 4,115,802 individuals. The intrusion began on June 5, 2026, after attackers allegedly used social engineering to compromise a privileged account belonging to a third-party provider, gaining access to cloud applications, patient-management systems, document storage, and electronic health-record portals.
Exposed data includes identity and contact details, demographic information, health-insurance information, and protected health information. An unidentified actor issued a ransom demand on June 15; ShinyHunters is suspected because AdaptHealth briefly appeared on the group’s extortion portal, though the company has not formally attributed the incident to the group.

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After AdaptHealth notified the U.S. Department of Health and Human Services that 4,115,802 individuals were affected, HHS added the incident to its data-breach portal.
AdaptHealth published an update confirming the June 5 compromise date and the categories of exposed data. The breach affected 4,115,802 individuals.
AdaptHealth submitted an initial disclosure about the incident to the U.S. Securities and Exchange Commission.
An unidentified malicious actor contacted AdaptHealth and demanded a ransom in exchange for not disclosing the stolen data.
AdaptHealth's cloud business applications, patient-management systems, document storage platforms, and electronic medical-record portals were compromised after social engineering targeted a privileged account belonging to a third-party provider. The intrusion exposed identity, contact, demographic, health-insurance, and health information.
The ShinyHunters cybercrime group claimed responsibility for the AdaptHealth intrusion and listed the company on its data-leak site. AdaptHealth had not confirmed the group’s claim.
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