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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