MGM Resorts outage continues as FBI launches investigation
A cyberattack attributed to hacker group Scattered Spider has caused an outage across MGM Resorts International’s computer systems, affecting some casino and hotel computer systems including the company’s website.
An error message on the website reads: “The MGM Resorts website is currently unavailable. We apologize for the inconvenience.” Users are instead directed to mobile applications and third-party services to access certain parts of the company’s offerings.
The “cybersecurity issue,” which has been ongoing since September 11, remains under investigation with even the FBI stepping in.
Major MGM outage being investigated
The FBI confirmed on September 13 that it had started investigating the incident (via Reuters), while MGM posted to X earlier this week: “Our investigation is ongoing and we are working diligently to determine the nature and scope of the matter.”
MGM’s website is currently directing restaurant customers to make reservations via its app, and for resident artist, production show, or attraction bookings to be made via Ticketmaster. Customers seeking UFC, Las Vegas Aces, Vegas Golden Knights, and Arena-based concert events are being told to use AXS.
Mandiant Intelligence’s CTO, Charles Carmakal, spoke on LinkedIn about the group, also known as UNC3944, calling it “one of the most prevalent and aggressive threat actors impacting organizations in the United States today.”
Carmakal said the cybersecurity company would publish more details about the group soon.
In the meantime, Reuters referred to a previous Crowdstrike blog post offering insight into the group’s activity: “Identified by analysts last year, this group uses social engineering to lure users into giving up their login credentials or one-time-password (OTP) codes to bypass multi-factor authentication.”
More broadly, a Bloomberg report citing four people familiar with the matter stated that the same group was responsible for a Caesars Entertainment Inc. breach just a few weeks ago. Another article suggests that Caesars paid “tens of millions” to the hackers responsible and has plans to “disclose the cyberattack in a regulatory filing imminently.”
More from TechRadar Pro
A cyberattack attributed to hacker group Scattered Spider has caused an outage across MGM Resorts International’s computer systems, affecting some casino and hotel computer systems including the company’s website. An error message on the website reads: “The MGM Resorts website is currently unavailable. We apologize for the inconvenience.” Users are…
Recent Posts
- LaCie 8big Pro5 review: I tested LaCie’s huge 256TB DAS solution, and it’s ideal for 8K video editing but it comes with a price tag that’s just as big
- Buying your dad a tech gift or gadget for Father’s Day? You may want to wait until Prime Day, if possible
- Which Amazon Fire Stick do I need? A simple guide to the key differences
- Stellar Blade’s slick-looking sequel is officially called Blood Rain
- How much data does your favorite messaging app collect? New study shows 90% of messaging apps now include AI that puts privacy at risk
Archives
- June 2026
- May 2026
- April 2026
- March 2026
- February 2026
- January 2026
- December 2025
- November 2025
- October 2025
- September 2025
- August 2025
- July 2025
- June 2025
- May 2025
- April 2025
- March 2025
- February 2025
- January 2025
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
- October 2023
- September 2023
- August 2023
- July 2023
- June 2023