In a Securities and Exchange Commission filing Thursday, MGM estimated its losses at $100 million, affecting third- and fourth-quarter earnings. (Bizuayehu Tesfaye/Las Vegas Review-Journal) Las Vegas casino company should be prepared for the possibility of a cyberattack in light of high-profile hacks that occurred in August and September, a software expert told the Las Vegas Review-Journal on Friday.īrett Callow, a threat analyst for the anti-malware software company Emsisoft, said he believes the financial loss suffered by MGM Resorts International over nine days in September was the costliest ransomware attack in history, surpassing a June 2022 attack against Norwegian aluminum manufacturer Norsk Hydro. From left, the New York-New York, Excalibur and MGM Grand hotel-casinos are seen on Thursday, Sept.
