HackingRetail & ConsumerRetailCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

AAMCO Transmissions & Total Car Care

bd_736aaf2502b33d0a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 16, 2025

Filed

Jun 20, 2025

To disclose

9 weeks

Affected

1state residents only

Confidence

66%

Full breach record for AAMCO Transmissions & Total Car Care →

AAMCO Transmissions, LLC (dba American Driveline Systems, Inc.) reported an external system breach (hacking) affecting one Maine resident. Unauthorized access occurred between April 11 and April 16, 2025. The incident involved the exposure of names, Social Security numbers, and/or driver's license numbers. Notification was sent on June 20, 2025, with one year of credit monitoring provided by Kroll.

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Maine clockScope identified May 21, 2025 → Filed with AG Jun 20, 202530d ✓ ME AG ≤30d9 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 5 days

discovery → filing · 9 weeks / 65 days

Apr 11, 2025

Begins

Apr 16, 2025

Discovered

Jun 20, 2025

Filed

vs. sector median

on median

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: American Driveline Systems, Inc.
norm: american driveline

Name: AAMCO Transmissions & Total Car Care
norm: aamco transmissions total car care
Domain: aamco.com
Industry: Retail & Consumerllm

Discovered: Apr 16, 2025
Scope identified: May 21, 2025Maine’s notice clock starts here (10 M.R.S. §1348(1))The letter says: “American Driveline Systems assessed the files involved and, on May 21, 2025, determined that the files included the name and Social Security number and/or driver’s license number of one Maine resident.”
Breach occurred: Apr 11, 2025 – Apr 16, 2025
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 20, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Initial access: exploit_public_facing

During the incident: Implemented its response protocols
Took measures to contain the activity
Launched an investigation
Engaged a cybersecurity firm
Established a dedicated, toll-free call center
Changes made: Enhanced its existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(65 days from discovery to filing)
Compliance flags: ME AG ≤30d · 30d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Scope identified: May 21, 2025
→ Filed with AG: Jun 20, 2025
30d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Scope identified: May 21, 2025 → Filed with AG: Jun 20, 2025	30d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

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-a1252b4f8318/94420f12-dd5d-4056-9f89-8aa2e02e7b53.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 20, 2025
Raw hash: 98be2c1593120f66c67b8c9b76860511f0789305e9310152baabb570ff7d9526

Reporting entityAmerican Driveline Systems, Inc.

Victim entityAAMCO Transmissions & Total Car Care

Incidentdiscovered Apr 16, 2025

Stated responseImplemented its response protocols

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov