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MGM Resorts International disclosed that it is responding to a cybersecurity issue that impacted some of its systems, including its main website, online reservations, and in-casino services, like ATMs, slot machines, and credit card machines.
The company started an investigation immediately after detecting the issue and took prompt action to protect the systems and data, including shutting down certain systems.
The outage started on Sunday night and computer systems in the resorts are currently down. The company switched to manual operations, with the ATMs and credit card machines on properties having been affected.
The MGM Resorts main website is also down, currently informing that customers can make hotel reservations at any of its four destinations over the phone.
MGM Rewards customers are also affected, and they have been instructed to call a Member Services number between 6 AM and 11 PM, Pacific time.
All MGM websites using the same domain name as the main one - i.e. mgmresorts.com - have been offline for hours.
According to reports, some guests reported that their room keys were not working.
Local Las Vegas media outlet Vital Vegas also reports that the slot machines are not functional, instead displaying a temporarily unavailable message.
However, the cyberattack does not impact other MGM apps, such as MGM+ and the MGM sportsbook.
This is the second time MGM Resorts had confirmed a cybersecurity incident since 2019 when one of the company’s cloud services was breached, and hackers stole more than 10 million customer records.
