People search MGM Resorts data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 3 MGM Resorts-linked incidents, with headline counts up to 142M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why MGM Resorts breach history matters
MGM Resorts operates in Other (United States). Across indexed rows, recurring themes include cloud and database misconfiguration. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2022 — 142M records
Cataloged incident. Threat actors dumped 142M+ customer records on Telegram. Names, postal and email addresses, phone numbers, dates of birth. Data reportedly from 2019 breach. MGM had prior breach history. Exposed categories include Names, addresses, email, phone numbers, dates of birth. BreachHistory cites approximately 142M+ affected records in this row. See the mgm-resorts2022 and canonical BreachHistory entry.
2020 — — MGM Hotels: Hacking, 10,600,000 records
Cataloged incident. Data stolen during an 2019 hack of an MGM server was published on a hacking forum. Exposed categories include Personal and demographic data. BreachHistory cites approximately 10.6M+ affected records in this row. See the mgm-resorts2020-iib and canonical BreachHistory entry.
2019 — 10.6M hotel guests
Cataloged incident. MGM Resorts suffered a breach exposing personal data of 10.6 million former hotel guests. The data was posted for sale on a hacking forum and included names, addresses, phone numbers, emails, and dates of birth. The breach affected guests who had stayed at MGM properties. Exposed categories include Names, addresses, phone numbers, emails, dates of birth. BreachHistory cites approximately 10.6M+ affected records in this row. See the mgm-resorts2019 and canonical BreachHistory entry.
Patterns and analysis
- Cloud and database misconfiguration — appears across multiple MGM Resorts catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Bookmark the MGM Resorts company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/mgm-resorts · Latest: mgm-resorts2022.
Sources: BreachHistory catalog (3 rows for MGM Resorts), company and regulator disclosures cited in individual breach records.