UnknownCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Post Companies, LLC

bd_a31f94e274df8643 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 20, 2026

Filed

Oct 13, 2026

To disclose

8 weeks

Affected

1state residents only

Confidence

69%

Full breach record for Post Companies, LLC →

Post Companies, LLC detected unauthorized access to its network on August 20, 2026. The company retained cybersecurity experts to investigate. It was determined that personal information, including first name, last name, and driver's license number, may have been compromised for one Idaho resident. Notifications were sent on October 7, 2026. The company implemented stricter multi-factor authentication and offered credit monitoring.

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Incident timeline

discovery → filing · 8 weeks / 54 days

Aug 20, 2026

Discovered

Oct 13, 2026

Filed

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

Name: Post Companies, LLC
norm: post companies

Name: Post Companies, LLC
norm: post companies

Discovered: Aug 20, 2026
Materiality determined: —
Notification sent: Oct 7, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unknown
Regulator citations: Notified Idaho Attorney General's Office

During the incident: Retained cybersecurity experts to secure its network and to perform an investigation
Undertook a comprehensive review of the data potentially impacted
Changed passwords
Strengthened password requirements
Implemented stricter multi-factor authentication requirements
Changes made: Offering 12 months of credit monitoring and identity theft protection through CyberScout
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(54 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

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.ag.idaho.gov/content/uploads/2026/10/2026-10-13-Post-Companies-LLC.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 13, 2026
Raw hash: f4207d796d10a54a63d675705a32a3b1b96a3c766cca983bede225e2f9e188e9

Reporting entityPost Companies, LLC

Victim entityPost Companies, LLC

Incidentdiscovered Aug 20, 2026

Stated responseRetained cybersecurity experts to secure its network and to perform an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.ag.idaho.gov