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Agency for Community Treatment Services

Disclosed Dec 22, 20205 years ago73,825 affectedConfirmed

Official notice

The covered entity (CE), Agency for Community Treatment Services, reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 73,825 individuals. The PHI involved included names, dates of birth, Social Security numbers, financial and health insurance information, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect its PHI. Further, the CE provided additional training to its workforce regarding best practices for HIPAA privacy and security and the use of the CE’s network systems.

What is known

People affected73,825 (as reported by the organization)
DisclosedDec 22, 2020
HappenedOct 21, 2020
AttackHacking
Data exposedNames, Health
SectorGovernment · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
Indiana AGresidents of INDec 22, 202017
HHS archivetotalDec 22, 202073,825
History of this record
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · data_types: [] to ["names","health"] · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), Agency for Community Treatment Services, reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 73,825 individuals. The PHI involved included names, dates of birth, So · backfill source
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (Indiana AG), confirmed by Indiana AG. Record counts are as reported. Not legal advice.

Everything about Agency for Community Treatment Services

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