💎Delaware State AG
Clustered 7 filings across 7 jurisdictions · filing window Nov 20, 2023 → Dec 13, 2023. View entity profile → Other incidents for this victim →
incident inc_e93254885d5944bb · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
PII · Identity (basic) · Government ID
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
CA DE ME MT NH OR WA
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Aug 12, 2023
When the intrusion reportedly occurred, per the linked filings
Nov 2, 2023
Reported by DELAWARE AG, MAINE AG, CALIFORNIA AG, WASHINGTON AG, OREGON AG filings
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
Midwest Gaming & Entertainment, d/b/a Rivers Casino Des Plaines, experienced unauthorized access to its network on or around August 12, 2023. The incident involved the access or removal of files containing personal information of team members, customers, and online sportsbook customers. The company engaged third-party cybersecurity support and law enforcement. No evidence of financial fraud or identity theft was found. Affected individuals were offered one year of Experian IdentityWorks credit monitoring. The breach impacted residents in multiple states including Delaware, Iowa, Maryland, New York, North Carolina, Oregon, Washington D.C., New Mexico, and Rhode Island.
Midwest Gaming & Entertainment, LLC (d/b/a Rivers Casino Des Plaines) reported unauthorized access to its network on or around August 12, 2023. The incident was discovered on November 2, 2023. Files containing personal information of team members, customers, and online sportsbook customers may have been accessed or removed. The company engaged third-party cybersecurity support and law enforcement. No evidence of financial fraud or identity theft was found. Complimentary credit monitoring was offered.
Midwest Gaming & Entertainment, LLC, doing business as Rivers Casino Des Plaines, reported a data breach affecting 202 Maine residents. The incident, an external system breach (hacking), occurred between August 8 and August 12, 2023, and was discovered on November 2, 2023. The compromised information includes names and financial account or credit/debit card numbers along with their associated security codes, access codes, passwords, or PINs. Affected individuals were notified in writing on November 20, 2023, and offered credit monitoring services.
Affected (this filing): 202
Midwest Gaming & Entertainment, LLC dba Rivers Casino Des Plaines reported a data breach to the Montana Attorney General. The breach was reported on 2023-11-22. The breach occurred on 8/12/2023. 132 Montana residents were affected.
Affected (this filing): 132
State of New Hampshire Attorney General breach notification filed by Midwest Gaming & Entertainment, LLC., dba Rivers Casino Des Plaines on December 1, 2023. The attached PDF document appears to be empty or contains only structural placeholders; no specific breach details, dates, data types, or response actions are visible in the provided source text.
Midwest Gaming & Entertainment, LLC dba Rivers Casino Des Plaines, a business sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2023-11-02 and filed notice on 2023-12-04. 1,946 Washington residents were affected. 32 days elapsed between awareness and notification. 82 days to identify the breach.
Affected (this filing): 1,946
Midwest Gaming & Entertainment, LLC reported a data breach to the Oregon Attorney General. The breach was reported on 2023-12-13. The breach occurred during 8/12/2023. The breach was discovered on 11/2/2023. Notice was sent on 11/20/2023.