and abroad were expected to be paid on time.Ĭallow, speaking by telephone from British Columbia, Canada, called most media accounts of the incidents speculative because information appeared to be coming from the same entities that claim to have carried out the attacks. But company spokesman Brian Ahern said its 75,000 employees in the U.S. Some MGM Resorts computer systems were still down Thursday, including hotel reservations and payroll. The FBI said an investigation was ongoing but offered no additional information. It also operates properties in China and Macau.Ī company report on Tuesday to the SEC pointed to its Monday news release.

MGM Resorts has has about 40 million loyalty rewards members and tens of thousands of hotel rooms in Las Vegas at properties including the MGM Grand, Bellagio, Aria and Mandalay Bay. Customers shared stories on social media about not being able to make credit card transactions, obtain money from cash machines or enter hotel rooms. MGM Resorts said reservations and casino floors in Las Vegas and other states were affected. The disclosure by Caesars came after MGM Resorts International, the largest casino company in Las Vegas, reported publicly on Monday that a cyberattack that it detected Sunday led it to shut down computer systems at its properties across the U.S.

There was no evidence the intruder obtained member passwords or bank account and payment card information, the company reported, adding that operations at casinos and online “have not been impacted by this incident and continue without disruption.” The company told the SEC that loyalty program customers were being offered credit monitoring and identity theft protection. Company officials did not respond to emailed questions from The Associated Press. It also has mobile and online operations and sports betting.

and Canada,” Mandiant said.Ĭaesars is the largest casino owner in the world, with more than 65 million Caesars Rewards members and properties in 18 states and Canada under the Caesars, Harrah’s, Horseshoe and Eldorado brands. “This relatively new entrant in the ransomware industry has hit at least 100 organizations, most of them in the U.S.

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