Home › Organisations › Caesars Entertainment, Inc. 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, the Washington State Attorney General breach-notification register, the Hawaii Office of Consumer Protection breach-notice list and the Delaware Attorney General data security breach database with 3 confirmed incidents (4 filings); the most recent notice was filed on May 19, 2026.
Headquarters Reno, United States ISIN US12769G1004 LEI 549300FA4CTCW903Y781 Wikidata Q18636524 Data as of October 17, 2026.
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 May 19, 2026
Reported to regulator Regulator MA AG breach notification: 16 Massachusetts residents affected
source May 19, 2026
Reported to regulator Regulator WA AG breach notification: 44,023 Washington residents affected
source What a Washington notice means Governed by 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 Governed by 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 October 6, 2023
Reported to regulator Regulator DE AG breach notification: 154,611 Delaware residents affected
source October 6, 2023
Reported to regulator Regulator DE AG breach notification: 154,611 Delaware residents affected
source October 6, 2023
Reported to regulator Regulator DE AG breach notification: 154,611 Delaware residents affected
source October 11, 2023
Reported to regulator Regulator MA AG breach notification: 327,948 Massachusetts residents affected
source October 11, 2023
Reported to regulator Regulator CA AG breach notification: an unknown number of California residents affected
source October 11, 2023
Reported to regulator Regulator HI AG breach notification: 165,271 Hawaii residents affected
source Litigation Possible litigation — multiple candidate dockets found, not yet resolved to a single case. Possible litigation — multiple candidate dockets found, not yet resolved to a single case. What a California notice means Governed by 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 ↗
What a Delaware notice means Governed by 6 Del. C. §12B-102 . Notice to the Attorney General is required when a breach affects more than 500 Delaware residents.
Note: the count is Delaware residents only, not a total.
Delaware breach-notification register ↗
What a Hawaii notice means Governed by HRS §487N-2 . Notice to the Office of Consumer Protection is required when a breach affects 1,000 or more Hawaii residents.
Note: the count is Hawaii residents only, not a total.
Hawaii breach-notification register ↗
Confirmed incident US-WA — Unauthorized Access/Disclosure Occurred August 19, 2023 Disclosed October 6, 2023 Timeline October 6, 2023
Reported to regulator Regulator WA AG breach notification: 784,234 Washington residents affected
source Litigation Possible litigation — multiple candidate dockets found, not yet resolved to a single case.