ELEVATED RISK BREACH

MGM Resorts Data Breach


Status: Confirmed

24.8M+Records
Jul, 2019Breach
12/1/24Data Posted
7/10Severity
ModerateThreat Level

Breach Intelligence Summary


Entity: MGM Resorts · Actor: Play · Source: DataBreach.com / ObscureIQ intelligence

Attack: Ransomware via Compromised credentials

Timeline: Breach (Jul, 2019) · Reported (May, 2022) · Leak (12/1/24)

Exposure: 24.8M+ records · Dates of birth, Email, Home Address, Name, Names, Phone Number, Phone numbers, Physical addresses

Status: Confirmed · Risk: Moderate (Phishing / SIM swap)

Summary

In July 2019 MGM Resorts International-operator of marquee Las Vegas properties such as the Bellagio Mandalay Bay and the MGM Grand-experienced a major data breach that ultimately exposed the personal details of roughly 10.6 million former hotel guests. The stolen database surfaced on an underground hacking forum in February 2020 uploaded by a user believed to be connected to the prolific credential-trading group “GnosticPlayers ” which had already leaked billions of records from other companies that year. The compromised dataset contained full names home addresses phone numbers email addresses and dates of birth for millions of travelers-including celebrities tech executives government officials and law-enforcement agents. MGM said no payment-card numbers passwords or other highly sensitive identifiers (e.g. Social Security numbers) were included but security researchers warned that the breadth of contact information alone was sufficient to fuel targeted phishing and social-engineering campaigns. A subsequent forensic investigation concluded that threat actors had gained “unauthorized access to a cloud server” hosting historical guest records; industry analysts pointed to a misconfigured storage bucket as the likely entry point. MGM brought in two external incident-response firms yet its initial public statements emphasized that the breach was limited and fully contained-an assurance that critics argued understated the true impact on guests’ privacy. Although MGM claimed to have notified affected individuals shortly after discovery the company faced backlash for waiting until the leaked database went viral to provide broader disclosure. That perceived opacity triggered a wave of litigation. Beginning in 2020 more than twenty class-action complaints-including Tanya Owens v. MGM Resorts International -were filed in the U.S. District Court for the District of Nevada alleging negligence breach of implied contract unjust enrichment and violations of a patchwork of state consumer-protection statutes. Plaintiffs contended that MGM failed to maintain reasonable security controls mismanaged its cloud environment and delayed notifying guests thereby heightening the risk of identity theft SIM-swapping and harassment. They also sought compensation for out-of-pocket expenses such as credit-monitoring services credit freezes and the time spent mitigating fraud. After more than three years of consolidated discovery and mediation MGM agreed in January 2025 to a global $45 million settlement covering the 2019 cloud-server breach (as well as a separate 2023 ransomware incident). The deal offers tiered cash payments of $20-$75-plus up to $15 000 for documented losses-and a year of financial-account monitoring to U.S. residents whose data was exposed. A final approval hearing is scheduled for June 18 2025. The litigation highlights growing judicial impatience with hospitality firms’ lax security practices and delayed transparency. Once approved the MGM settlement is expected to influence how hotels quantify breach-related harm the speed at which they must notify guests, and the baseline controls the industry is expected to maintain for customer data stored in public-cloud environments.

About MGM Resorts

MGM Resorts is the organization affected by this breach. User data may have been generated through account creation, service usage, or business operations.

If you have interacted with MGM Resorts in any capacity, your data may be included in this breach.

Threat Actor: Play

This breach has been attributed to Play. The group is known for data theft campaigns targeting organizations through various intrusion methods.

Reported or suspected access method:
  • Compromised credentials

Breach Exploitation Status

Threat Activity:
Moderate
Signal
Status
Dark web marketplace listings
Detected
Credential stuffing list overlap
Possible
Phishing campaign relevance
Possible
Ransomware affiliate crossover
Unknown
Law enforcement investigation visibility
Unknown

Data Longevity:
5+ years (high persistence)

Dates of birth are permanent and addresses change slowly. Combined with other fields, this data sustains long-tail targeting risk.

Data Points Exposed

Data observed in the leaked dataset:
Dates of birth
Email
Home Address
Name
Names
Phone Number
Phone numbers
Physical addresses
Not confirmed in dataset:
Passwords (plaintext)
Social Security Numbers
Payment card data

Dark Web Verification

Status: Confirmed

  • Dataset containing approximately 24.8M+ records has been identified in breach intelligence sources.
  • The data is indexed and searchable across breach notification platforms.

Impact

This breach carries moderate risk due to the nature of exposed data fields and the scale of affected records.

Primary downstream threats include:
  • Targeted phishing referencing MGM Resorts accounts or services
  • SIM-swap attempts where phone numbers are present
  • Physical mail scams and address-based identity verification fraud
  • Age/DOB used to bypass identity verification questions
  • Data broker enrichment and resale

Recommendations for Impacted Individuals

If you believe your information may be included:

Check Your Exposure
If you are an ObscureIQ client, this breach has been indexed into your exposure profile.
Non-clients may request a breach impact review.
Expect Targeted Phishing
Watch for messages referencing:
MGM Resorts account updates
Password reset requests
Verify directly through official channels.
Secure Your Email and MFA
Enable MFA immediately on email first, then financial platforms.
Email compromise is often the first pivot point.
Rotate Reused Passwords
Change any credentials shared with your MGM Resorts account across other services.
Monitor Financial Accounts
Monitor accounts associated with your exposed email for unauthorized activity.
Suppress Personal Data
Remove exposed addresses, phone numbers, and enrichment data from broker networks and search engines.

Frequently Asked Questions

What happened in the MGM Resorts data breach?

In Jul, 2019, MGM Resorts experienced a data breach that resulted in the exposure of approximately 24.8M+ records containing personal information.

What data was exposed in the MGM Resorts breach?

The exposed data includes Dates of birth, Email, Home Address, Name, Names, Phone Number, Phone numbers, Physical addresses.

How many records were affected in the MGM Resorts breach?

Approximately 24.8M+ records were affected based on current breach intelligence.

Is the MGM Resorts breach confirmed?

Yes. This breach is treated as confirmed based on data observed in breach intelligence platforms.

Is the MGM Resorts breach data being used by criminals?

Data circulation has been detected across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.

What should I do if I was affected by the MGM Resorts breach?

Rotate passwords associated with MGM Resorts, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.

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Corporate Accountability

Organizations that collect personal data have a duty to implement reasonable safeguards and to notify affected individuals when breaches occur.

Scope assessments may evolve as investigations continue. Users should not rely solely on early estimates when making risk decisions.

ObscureIQ Advisory

We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.

If you are:
  • A public-facing individual
  • A high-profile executive
  • A customer of MGM Resorts
  • Or simply concerned about credential reuse

We can confirm whether your information is circulating and evaluate downstream threat vectors.

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Classification Tags

Ransomware
Email
Phone
Address