Thousands of hotel guests in Las Vegas were locked out of their rooms as MGM Resorts International reported a cybersecurity attack that affected slot machines, room keys, ATMs and computer operations at various MGM properties.

“MGM Resorts recently identified a cybersecurity issue affecting some of the Company's systems,” MGM Resorts International wrote on social media on the morning on Sept. 11.

Reports of issues began on the evening of Sept. 10 when guests at various MGM properties shared photos of black-screened slot machines and wrote that they were locked out of their rooms.

https://twitter.com/Murphy2NL/status/1701321590271545749

After detecting the issue, MGM “quickly began an investigation with assistance from leading external cybersecurity experts” and “notified law enforcement and took prompt action to protect our systems and data, including shutting down certain systems.

“Our investigation is ongoing, and we are working diligently to determine the nature and scope of the matter,” MGM wrote.

https://twitter.com/MGMResortsIntl/status/1701256032369164399?s=20

FBI Investigating Cyberattack

A correspondent for ABC News wrote on X on Monday afternoon that the Federal Bureau of Investigation (FBI) had been in contact would MGM and will be investigating the incident.

https://twitter.com/astoneabcnews/status/1701334410040406419

MGM Resorts International is the largest employer in Nevada and operates many of the biggest resorts in Las Vegas, including Bellagio, ARIA Resort & Casino, MGM Grand Mandalay Bay, all of which are home to some of the most popular poker rooms in the city. The leading gaming company also operates Borgata in Atlantic City, MGM Grand Detroit, MGM Springfield and other non-Vegas properties.

As of Monday afternoon, mgmresorts.com and the websites for various properties were stated as being “currently unavailable” and directed customers to other communication lines.

It is unclear how many poker players have been affected by the cyberattack, though any currently staying at MGM properties are likely to have experienced difficulties.

PokerNews will continue to monitor the MGM Resorts cyberattack.

_{*Lead photo courtesy Connor O'Brien via X.}