HackingFinancial ServicesTechnologyFinanceVulnerability ExploitCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountHighContained

AutoNation, Inc.

bd_bcb09ac65f4f2fcb · schema v1 · pii pii-v1

Severity

High

Discovered

May 20, 2024

Filed

Mar 4, 2025

To disclose

41 weeks

Affected · nationwide

4,0547 in this filing

Linked

4 filings

Confidence

66%

Full breach record for AutoNation, Inc. →4 incidents on file

CrossCheck, Inc. reported a data breach affecting AutoNation, Inc. customers. Unauthorized access occurred May 18-20, 2024, via the merchant portal. Data exposed included names, driver's license numbers, and financial account info. 4,054 individuals affected; 7 in Maine. Notification sent March 4, 2025. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 20, 2024 → Filed with AG Mar 4, 2025288d ✗ ME AG >90d41 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 · 2 days

discovery → filing · 41 weeks / 288 days

May 18, 2024

Begins

May 20, 2024

Discovered

Mar 4, 2025

Filed

vs. sector median

+33 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Nebraska State AGbd_11c3ad79193326872025-03-04Verified
Maryland State AGbd_c158c2a75bf30f3e2025-03-04Verified
Montana State AGbd_02c1dec26ae275ca2024-12-19 · +75dCandidate

Name: CrossCheck, Inc.
norm: crosscheck

Name: AutoNation, Inc.
norm: autonation
Domain: autonation.com
Industry: Financial ServicesllmTechnologyllm

Discovered: May 20, 2024
Breach occurred: May 18, 2024 – May 20, 2024
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 4, 2025
Affected individuals: 4,054state + nationwide
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Providing written notice of this incident to relevant state regulators
Initial access: exploit_public_facing

During the incident: Notified federal law enforcement regarding the event
Providing access to credit monitoring services for twelve (12) months, through Experian
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state regulators
Providing written notice to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Implement additional safeguards and training to its employees
Reviewing and enhancing existing policies and procedures related to network security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 41 weeks(288 days from discovery to filing)
Compliance flags: ME AG >90d · 288dME resident >180d · 288d
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
Discovered: May 20, 2024
→ Filed with AG: Mar 4, 2025
288d 90 days ME AG >90d
Maine
Discovered: May 20, 2024
→ Notified: Mar 4, 2025
288d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 20, 2024 → Filed with AG: Mar 4, 2025	288d	90 days	ME AG >90d
Maine	Discovered: May 20, 2024 → Notified: Mar 4, 2025	288d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Montana State AGDec 19 · first

Nebraska State AG+75d

Maryland State AG+75d

Maine State AG+75d · this page

Pattern: first filing Dec 19 (MT), last Mar 4 (ME) — a 75-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/f9ee5015-eabe-4020-9be7-c729986f77ad.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 4, 2025
Raw hash: aec4847f97dcaea77edd4e8a5afce4f721238a401235029c7c0c9271297edb25

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCrossCheck, Inc.

Victim entityAutoNation, Inc.

Incidentdiscovered May 20, 2024

Stated responseNotified federal law enforcement regarding the event

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov