HackingHealthcareHealthcareStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedTargetedPIIIdentity (basic)Government IDHighContained

American Addiction Centers, Inc.

bd_f2aef419fe563786 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 26, 2024

Filed

Dec 23, 2024

To disclose

13 weeks

Affected

3,422state residents only

Linked

13 records

Confidence

66%

Full breach record for American Addiction Centers, Inc. →5 incidents on file

American Addiction Centers, Inc. (AAC) notified the New Hampshire Attorney General of a cybersecurity incident affecting approximately 3,422 NH residents. Unauthorized access occurred between Sept 23-26, 2024. AAC engaged third-party experts, contained the incident, and notified law enforcement. Personal information including names and SSNs was accessed. AAC offered credit monitoring and implemented additional security protocols.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d13 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 13 weeks / 88 days

Sep 23, 2024

Begins

Sep 26, 2024

Discovered

Dec 23, 2024

Filed

vs. sector median

+4 wks slower

This filing is one of 13 records about the same incident.View merged incident

A leak claim by rhysida about this victim was first seen 37 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_11a91148574528322024-12-23Verified
Indiana State AGbd_266ede66a8abf1682024-12-23Verified
Maine State AGbd_9c951622ce1ae8772024-12-23Verified
Oregon State AGbd_b259e2076c28f1162024-12-23Verified

Show 6 more filings ↓up to 28d gap

Montana State AGbd_fbdedafb516e74172024-12-23Verified
Massachusetts State AGbd_d58f78f6033011192024-12-24 · +1dVerified
Washington State AGbd_42be6e6e990f3ea52024-12-20 · +3dVerified
Vermont State AGbd_2c351109ea5b1eb92024-12-13 · +10dVerified
Illinois State AGbd_7622c35d1e9e68802024-12-01 · +22dCandidate
HHS OCRbd_10443d8cd56b65452024-11-25 · +28dVerified

Showing first 10 of 12 linked disclosures.

Name: American Addiction Centers, Inc.
norm: american addiction centers
Domain: americanaddictioncenters.org

Name: American Addiction Centers, Inc.
norm: american addiction centers
Domain: americanaddictioncenters.org
Industry: Healthcarellm

Discovered: Sep 26, 2024
Breach occurred: Sep 23, 2024 – Sep 26, 2024
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 23, 2024
Affected individuals: 3,422state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified the Secretary of Health and Human Services, Office for Civil Rights
Initial access: valid_credentials

During the incident: Engaged leading third-party cybersecurity experts to assist
Notified law enforcement and is cooperating with their investigation
Swiftly contained the incident
Secured its systems
Conducted a comprehensive investigation of the incident
Notified affected customers
Notified the Secretary of Health and Human Services, Office for Civil Rights
Notified the major Consumer Reporting Agencies
Mailed notices to individuals at their last known address
Offering complimentary credit monitoring and identity theft protection services to notified individuals
Changes made: Implemented and is continuing to implement additional security protocols designed to enhance the security of its IT system environments
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(88 days from discovery to filing)
Compliance flags: Leak >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 11 states

View merged incident ↗

HHS OCRNov 25 · first

Illinois State AG+6d

Vermont State AG+18d

Washington State AG+25d

California State AG+28d

Indiana State AG+28d

Maine State AG+28d

Oregon State AG+28d

Montana State AG+28d

New Hampshire State AG+28d · this page

Massachusetts State AG+29d

Pattern: first filing Nov 25 (TN), last Dec 24 (MA) — a 29-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://mm.nh.gov/files/uploads/doj/remote-docs/american-addiction-centers-20241223.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 23, 2024
Raw hash: 793c7f94985df30610e9d699779c0ed6245b5319c7f7370aba441d2880c32954

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityAmerican Addiction Centers, Inc.

Victim entityAmerican Addiction Centers, Inc.

Incidentdiscovered Sep 26, 2024

Stated responseEngaged leading third-party cybersecurity experts to assist

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov