HackingRetail & ConsumerRetailData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)Government IDMediumContained

Rivers Casino

bd_c39dcf25b2e949c2 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 2, 2023

Filed

Nov 20, 2023

To disclose

18 days

Affected

Not disclosed

Linked

2 filings

Confidence

65%

Full breach record for Rivers Casino →2 incidents on file

Rivers Casino Des Plaines, operated by Midwest Gaming and Entertainment, LLC, disclosed a cybersecurity incident where unauthorized access to its network occurred on or around August 12, 2023. The breach affected Team Members and customers, potentially exposing personal information including names and government IDs. The company engaged third-party cybersecurity support and law enforcement, offering one year of Experian IdentityWorks to affected individuals. No financial fraud or identity theft has been confirmed.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 82 days

discovery → filing · 18 days

Aug 12, 2023

Begins

Nov 2, 2023

Discovered

Nov 20, 2023

Filed

vs. sector median

5 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

South Carolina State AGbd_41dfcc28ec3e8dbd2023-11-28 · +8dVerified

Name: Midwest Gaming & Entertainment, LLC
norm: midwest gaming entertainment

Name: Rivers Casino
norm: rivers casino
Domain: riverscasino.com
Industry: Retail & Consumerllm

Discovered: Nov 2, 2023
Breach occurred: Aug 12, 2023
Undetected for: 82 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Consultation with law enforcement
Initial access: exploit_public_facing

During the incident: Engaged third-party cybersecurity support to investigate the incident
Launched an investigation in consultation with law enforcement and outside cybersecurity professionals
Offered a complimentary one-year membership of Experian IdentityWorks Credit 3B
Changes made: Offered a complimentary one-year membership of Experian IdentityWorks Credit 3B
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 days(18 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 ↗

Delaware State AGNov 20 · first · this page

South Carolina State AG+8d

Pattern: first filing Nov 20 (DE), last Nov 28 (SC) — a 8-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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2023/12/Rivers-Casino-Des-Plaines.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 20, 2023
Raw hash: 30eeb0803f020cf9b669823f8884453a27c54ea4a36165a44640dc94a9833c6f

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMidwest Gaming & Entertainment, LLC

Victim entityRivers Casino

Incidentdiscovered Nov 2, 2023

Stated responseEngaged third-party cybersecurity support to investigate the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceattorneygeneral.delaware.gov