HackingTechnologyInformationCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Frontier Group Holdings, Inc.

bd_d1f6ed2618f495e5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 13, 2024

Filed

Nov 25, 2024

To disclose

15 weeks

Affected

2state residents only

Linked

3 filings

Confidence

63%

Full breach record for Frontier Group Holdings, Inc. →

Frontier Ag, Inc. notified Montana residents of a data breach where unauthorized access occurred between August 12-13, 2024. The company discovered suspicious activity on August 13, 2024. Personal information, including names and government identifiers, was accessed. No evidence of misuse was found. The company offered credit monitoring services.

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Incident timeline

undetected · 1 days

discovery → filing · 15 weeks / 104 days

Aug 12, 2024

Begins

Aug 13, 2024

Discovered

Nov 25, 2024

Filed

vs. sector median

4 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteransomhubbd_e6d2a3c17c8b22a62024-06-01 · +176dVerified by operator

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_09cc66499cb160da2024-11-25Candidate

Name: Frontier Group Holdings, Inc.
norm: frontier group
Domain: flyfrontier.com

Name: Frontier Group Holdings, Inc.
norm: frontier group
Domain: flyfrontier.com
Industry: Technologyllm

Discovered: Aug 13, 2024
Breach occurred: Aug 12, 2024 – Aug 13, 2024
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: notify applicable regulatory authorities where necessary

During the incident: Promptly commenced an investigation to confirm the nature and scope of this incident
Confirming the security of our systems
Reviewing the contents of relevant data for sensitive information
Notifying potentially impacted individuals
Providing you with 12/24 months of complimentary access to credit monitoring and identity restoration services through Equifax
Changes made: Continue to review our policies, procedures and processes related to the storage and access of personal information to reduce the likelihood of a similar future event
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(104 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Indiana State AGNov 25 · first

Montana State AGNov 25 · first · this page

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://dojmt.gov/wp-content/uploads/2025/02/Consumer-notification-letter-14.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 25, 2024
Raw hash: b8cd2a0dc0c962fe2f3bb9b335f4a5a1e51f2e36698cef7052b73ce9512c80f0

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityFrontier Group Holdings, Inc.

Victim entityFrontier Group Holdings, Inc.

Incidentdiscovered Aug 13, 2024

Stated responsePromptly commenced an investigation to confirm the nature and scope of this incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov