Customer Experience

Hackers breach MGM Resorts, shuttering slots, sportsbook kiosks, automated check-in, parking

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September 15, 2023

Guests and employees at MGM Resorts have been inconvenienced by a ransomware attack that shuttered gaming machines, automated check-in, parking systems and guest room keys for five days, according to a Las Vegas Review-Journal report.

A Russian hacker group called ALPHV claimed responsibility for the hack which took computer systems offline, according to an internet post.

MGM Resorts, which operates numerous casinos, hotels, convention spaces and entertainment facilities, released a statement on Wednesday saying it identified the cybersecurity issue and has engaged cybersecurity experts.

Employees of one MGM Las Vegas property, Cosmopolitan, speaking anonymously, said they were told the outage could take as long as 10 days to resolve.

Redemption machines using "ticket in/ticket out" were not working, causing slot runners to do manual payouts.

About half of the sportsbook kiosks were unable to take wagers.

Some retail and restaurant outlets were not able to accept credit cards, while ATMs at some properties were not working.

Hotel check-ins were being handled manually since the app that allows guests to do so was not working. Employees also issued key cards to allow guests room access.

The Las Vegas FBI field office said it was investigating the matter.