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

Īfter 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. 10 when guests at various MGM properties shared photos of black-screened slot machines and wrote that they were locked out of their rooms.

Reports of issues began on the evening of Sept. '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. MGM properties in Las Vegas and across the country are operational after 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. Connor Richards Editor & Live Reporter U.S.

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