All Breaches
March 21, 2026 Verified Sensitive Record Healthcare / Behavioral Health and Addiction Treatment

Acadia Healthcare 2026 Security Incident

The 2026 Acadia Healthcare security incident involved unauthorized access through social engineering to one employee email account and its associated SharePoint area from March 21 through March 25…

1.8 Thousand
Affected People
7
Data Types
Low
Severity
Yes
Verification

Exposed Data Types

7
Names
Physical addresses
Dates of birth
Personal health data
Health insurance information
Subset-only social security numbers
Subset-only health insurance claim numbers

Additional Information

Added DateJuly 7, 2026
Breach DateMarch 21, 2026
Domainacadiahealthcare.com
SourceReviewed organization notice
Last Content UpdateJuly 29, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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