HackingHealthcareHealthcareCustomer Data InvolvedPIIIdentity (basic)HighContained

American Addiction Centers, Inc.

bd_9c951622ce1ae877 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 22, 2024

Filed

Dec 23, 2024

To disclose

4 weeks

Affected · nationwide

422,424669 in this filing

Linked

13 records

Confidence

65%

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

American Addiction Centers, Inc. reported an external system breach (hacking) occurring between September 23-26, 2024, discovered on November 22, 2024. The incident affected 422,424 individuals nationwide, including 669 Maine residents. Personal identifiers were compromised. The company provided 12 months of identity theft protection services through Transunion/CyberScout to affected individuals.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Nov 22, 2024 → Filed with AG Dec 23, 202431d ⏱ ME AG >30d4 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 60 days

discovery → filing · 4 weeks / 31 days

Sep 23, 2024

Begins

Nov 22, 2024

Discovered

Dec 23, 2024

Filed

vs. sector median

5 wks faster

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
Oregon State AGbd_b259e2076c28f1162024-12-23Verified
New Hampshire State AGbd_f2aef419fe5637862024-12-23Verified

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: Nov 22, 2024
Breach occurred: Sep 23, 2024 – Sep 26, 2024
Undetected for: 60 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 23, 2024
Affected individuals: 422,424state + nationwide
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Filed notification with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Offering identity theft services through Transunion/CyberScout for 12 months
Changes made: Continue to take steps to prevent a similar incident from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
Compliance flags: ME AG >30d · 31dLeak >30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Nov 22, 2024
→ Filed with AG: Dec 23, 2024
31d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 22, 2024 → Filed with AG: Dec 23, 2024	31d	30 days (soft)	ME AG >30d

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

Oregon State AG+28d

New Hampshire State AG+28d

Montana State AG+28d

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/ff8926f7-302d-4cbb-a554-9b03d6b32d03.html
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: 25c59fdf0f9e09f9e7e9784556e08abbfea2aac55d6fa05519ce2e6208c79f46

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityAmerican Addiction Centers, Inc.

Victim entityAmerican Addiction Centers, Inc.

Incidentdiscovered Nov 22, 2024

Stated responseOffering identity theft services through Transunion/CyberScout for 12 months

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov