MGM Resorts International

Disclosed Oct 5, 20232 years agoConfirmed

What is known

People affected	Not stated in the sources we have
Disclosed	Oct 5, 2023
Discovered	Sep 8, 2023
Happened	Sep 8, 2023
Attack	Hacking
Data exposed	Not stated
Sector	Other · US
Status	Confirmed

Source	Kind
California Attorney General breach notice: MGM Resorts Internationaloag.ca.gov · Official notice	Official notice
Washington Attorney General breach notice: MGM Resorts Internationalatg.wa.gov · Official notice	Official notice
Oregon DOJ breach notice: MGM Resorts Internationaljustice.oregon.gov · Official notice	Official notice
Vermont Attorney General: 2023-10-05 MGM Resorts International Data Breach Notice to Consumersago.vermont.gov · Official notice	Official notice
Indiana Attorney General 2023 data breach report: MGM Resorts Internationalin.gov · Official notice	Official notice

Where	Filed	People
California AGresidents of CA	Oct 5, 2023
Washington AGresidents of WA	Oct 5, 2023	811,740
Oregon DOJresidents of OR	Oct 5, 2023
Vermont AGresidents of VT	Oct 5, 2023
Indiana AGresidents of IN	Oct 5, 2023
California AGresidents of CA	Dec 5, 2023

Breach	Disclosed	Attack	Sector	Status	Affected
Disclosed Sep 5, 2019Sep 5, 20197 years ago	Sep 5, 20197 years ago	Not stated	Other	Confirmed	47K

History of this record

2026-09-25 · source: empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/D-BYear-to-Date-Report-2023.pdf · backfill source
2026-09-25 · source: empty to https://ago.vermont.gov/document/2023-10-05-mgm-resorts-international-data-breach-notice-consumers · backfill source
2026-09-25 · attack: unknown to hacking · backfill source
2026-09-25 · discovered: empty to 2023-09-08 · backfill source
2026-09-25 · disclosed: 2023-12-05 to 2023-10-05 · backfill source
2026-09-25 · added · backfill source

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.