HackingRetail & ConsumerRetailVulnerability ExploitCustomer Data InvolvedIdentity (basic)Financial accountLowContained

AutoNation, Inc.

bd_11c3ad7919332687 · schema v1 · pii pii-v2

Severity

Low

Discovered

May 20, 2024

Filed

Mar 4, 2025

To disclose

—

Affected

7state residents only

Linked

4 filings

Confidence

66%

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

AutoNation, Inc., via processor CrossCheck, Inc., reported unauthorized access to its merchant portal between May 18-20, 2024. The incident affected 7 Nebraska residents, exposing names and financial account information. CrossCheck notified federal law enforcement, provided 12 months of credit monitoring via Experian, and sent notices to state regulators and credit bureaus. Notification to residents occurred on March 4, 2025.

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Incident timeline

undetected · 2 days

May 18, 2024

Begins

May 20, 2024

Discovered

Mar 4, 2025

Filed

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

Maine State AGbd_bcb09ac65f4f2fcb2025-03-04Verified
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: retail_consumer
Industry: Retail & Consumerllm

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: 7state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the eventproviding written notice of this incident to relevant state regulators
Initial access: exploit_public_facing

During the incident: Launched an investigation into the nature and scope of the activity
Undertook a comprehensive review of the accessible data
Notified federal law enforcement regarding the event
Working to implement additional safeguards and training to its employees
Providing access to credit monitoring services for twelve (12) months, through Experian
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: Reviewing and enhancing our existing policies and procedures related to network security
Implementing additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Montana State AGDec 19 · first

Maine State AG+75d

Maryland State AG+75d

Nebraska State AG+75d · this page

Pattern: first filing Dec 19 (MT), last Mar 4 (NE) — 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://nebraska.gov/ago/data-breach/documents/CrossCheck, Inc. Notice of Data Event - NE.pdf
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: 34b093507ca12cbcd86e804aed9136d973e9e0feff7c9dc371cfa1a117c85dfe

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCrossCheck, Inc.

Victim entityAutoNation, Inc.

Incidentdiscovered May 20, 2024

Stated responseLaunched an investigation into the nature and scope of the activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov