BreachCensus

AdaptHealth Corp.

public companyHealthcareUnited States of America

AdaptHealth Corp. is a healthcare organisation in California. It appears on the California Attorney General breach-notification register, the Washington State Attorney General breach-notification register, the Texas Attorney General breach-notification register, the Vermont Attorney General breach-notification register and an SEC 8-K filing with 2 confirmed incidents; the most recent notice was filed on August 14, 2026.

Data as of September 19, 2026.

Confirmed incident

Filed in CA, TX, VT and WA — Hacking/IT Incident

The same incident was filed separately with 4 jurisdictions within a few days of each other (CA, TX, VT and WA) — shown here as one incident.

“On June 15, 2026, we became aware that an unauthorized third party obtained access to certain company systems.”

Occurred
June 5, 2026
Discovered
June 15, 2026
Disclosed
August 14, 2026
Records affected
4,115,802

Timeline

  1. August 14, 2026
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  2. August 14, 2026
    Reported to regulator Regulator

    WA AG breach notification: 9,214 Washington residents affected

    source
  3. August 14, 2026
    Reported to regulator Regulator

    TX AG breach notification: 143,454 Texas residents affected

    source
  4. August 14, 2026
    Reported to regulator Regulator

    VT AG breach notification: 48,090 Vermont residents affected

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
What a California notice means

Governed by Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

What a Texas notice means

Governed by Tex. Bus. & Com. Code §521.053. Notice to the Attorney General is required when a breach affects at least 250 Texas residents.

Note: the published count is a total, not limited to Texas residents.

Texas breach-notification register ↗

What a Vermont notice means

Governed by 9 V.S.A. §2435. Notification to the Attorney General is required.

Note: the count is Vermont residents.

Vermont breach-notification register ↗

What a Washington notice means

Governed by RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.

Note: the count is Washington residents only, not a total.

Washington breach-notification register ↗

Confirmed incident

US — Social Engineering

“AdaptHealth Corp. (the “Company”) is investigating a security incident whereby a threat actor gained unauthorized access to Company systems and exfiltrated certain data therefrom.”

Disclosed
July 2, 2026
Records affected
4,115,802

Timeline

  1. June 5, 2026
    Press coverage Press

    press report (press_reported): the forensic investigation determined that the attack occurred on June 5, 2026

    source
  2. July 2, 2026
    Acknowledged by organisation Self-reported

    Form 8-K Item 1.05 filed 2026-07-02

    source
  3. July 3, 2026
    Press coverage Press

    press report (acknowledged): July 3, 2026: AdaptHealth Reports Material Cybersecurity Incident and Theft of Patient Data

    source
  4. August 14, 2026
    Press coverage Press

    press report (individuals_notified): AdaptHealth added a notice to its website on August 14, 2026

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.