BreachCensus

Caesars Entertainment, Inc.

HospitalityUnited States of America

SEC EDGAR CIK 0001590895

Caesars Entertainment, Inc. is a hospitality organisation in Washington. It appears on the Massachusetts Attorney General breach-notification register, the California Attorney General breach-notification register and the Washington State Attorney General breach-notification register with 3 confirmed incidents (4 filings); the most recent notice was filed on May 19, 2026.

Data as of September 6, 2026.

Sources

Confirmed incident

Filed in WA and MA — Hacking/IT Incident

The same incident was filed separately with 2 jurisdictions within a few days of each other (WA and MA) — shown here as one incident.

Occurred
February 23, 2026
Disclosed
May 19, 2026

Timeline

  1. May 19, 2026
    Reported to regulator Regulator

    MA AG breach notification: 16 Massachusetts residents affected

    source
  2. May 19, 2026
    Reported to regulator Regulator

    WA AG breach notification: 44,023 Washington residents affected

    source
What a Washington notice means

Required under RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.

Note: the count is Washington residents only, not a total.

Washington breach-notification register ↗

What a Massachusetts notice means

Required under M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗

Confirmed incident

Filed in CA, DE, MA and HI

The same incident was filed separately with 4 jurisdictions within a few days of each other (CA, DE, MA and HI) — shown here as one incident.

Occurred
August 23, 2023
Disclosed
October 11, 2023

Timeline

  1. October 6, 2023
    Reported to regulator Regulator

    DE AG breach notification: 154,611 Delaware residents affected

    source
  2. October 11, 2023
    Reported to regulator Regulator

    MA AG breach notification: 327,948 Massachusetts residents affected

    source
  3. October 11, 2023
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  4. October 11, 2023
    Reported to regulator Regulator

    HI AG breach notification: 165,271 Hawaii residents affected

    source
What a California notice means

Required under Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

Confirmed incident

US-WA — Unauthorized Access/Disclosure

Occurred
August 19, 2023
Disclosed
October 6, 2023

Timeline

  1. October 6, 2023
    Reported to regulator Regulator

    WA AG breach notification: 784,234 Washington residents affected

    source

Related

Same sector and location

Disclosed around the same time