Social EngineeringRetail & ConsumerRetailPhishingSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)MediumContained

CAESARS ENTERTAINMENT, INC.

bd_3808f9e72f2d34c3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 19, 2023

Filed

Oct 6, 2023

To disclose

7 weeks

Affected

59,221state residents only

Linked

12 filings

Confidence

66%

Full breach record for CAESARS ENTERTAINMENT, INC. →5 incidents on file

Caesars Entertainment, Inc. notified the New Hampshire Attorney General on October 6, 2023, of a data security incident affecting approximately 59,221 state residents. The breach resulted from a social engineering attack targeting an outsourced IT support vendor (supply chain compromise) on August 19, 2023. The unauthorized actor accessed the loyalty program database, compromising personal information of members. Caesars offered two years of credit monitoring and identity protection services to affected individuals.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 7 weeks / 48 days

Aug 19, 2023

Discovered

Sep 14, 2023

Scope determined

Oct 6, 2023

Filed

vs. sector median

1 wks faster

This filing is one of 12 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Maine State AGbd_05c8c6491430b9e62023-10-06Verified
Washington State AGbd_272f94a6f3de2ba42023-10-06Verified
Delaware State AGbd_69a1d6b1c88c08cd2023-10-06Verified
Montana State AGbd_99384d40133c3f202023-10-06Verified

Show 6 more filings ↓up to 12d gap

Indiana State AGbd_c1415bc5d04e33312023-10-06Verified
Hawaii State AGbd_4875e85583699d0e2023-10-11 · +5dVerified
Massachusetts State AGbd_af0b8fc7aaaaff0f2023-10-11 · +5dVerified
California State AGbd_f8b5acb3346f154c2023-10-11 · +5dVerified
South Carolina State AGbd_b19c75ce2c69d4bd2023-10-12 · +6dVerified
Oregon State AGbd_e9281b4209172a1f2023-10-18 · +12dVerified

Showing first 10 of 11 linked disclosures.

Name: CAESARS ENTERTAINMENT, INC.
norm: caesars entertainment

Name: CAESARS ENTERTAINMENT, INC.
norm: caesars entertainment
Industry: Retail & Consumerllm

Discovered: Aug 19, 2023
Materiality determined: Sep 14, 2023
Notification sent: Oct 6, 2023
Affected individuals: 59,221state-resident count only
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1078 Valid Accounts
Threat actor: External
Regulator citations: notified state gaming regulators
Initial access: supply_chain

During the incident: Activated its incident response protocols
Implemented a series of containment and remediation measures
Launched an ongoing investigation
Engaged leading cybersecurity firms to assist
Notified law enforcement and state gaming regulators
Changes made: Deployed advanced security tooling across its network
Engaged in tactical security hardening activities
Dark web monitoring
Took steps to ensure that the specific outsourced IT support vendor involved in this matter
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(48 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 11 states

View merged incident ↗

Maine State AGOct 6 · first

Washington State AGOct 6 · first

Delaware State AGOct 6 · first

Montana State AGOct 6 · first

Indiana State AGOct 6 · first

New Hampshire State AGOct 6 · first · this page

Hawaii State AG+5d

Massachusetts State AG+5d

California State AG+5d

South Carolina State AG+6d

Oregon State AG+12d

Pattern: first filing Oct 6 (ME), last Oct 18 (OR) — a 12-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 11 — the full spread may be wider.

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://mm.nh.gov/files/uploads/doj/remote-docs/caesars-entertainment-20231006.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 6, 2023
Raw hash: 5a782429745fcf70783fc37df51585c0cf9be3c8e4e681e03c0c9d30568fb9e2

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityCAESARS ENTERTAINMENT, INC.

Victim entityCAESARS ENTERTAINMENT, INC.

Incidentdiscovered Aug 19, 2023

Stated responseActivated its incident response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov