What we know about BlackCat and the MGM hack

More than a week after it suffered a crippling ransomware attack, the hotel giant MGM is struggling to recover. The attack, linked to the ransomware-as-a-service (RaaS) group known as ALPHV, or BlackCat, caused slot machines and ATMs in MGM’s Las Vegas hotels to go dark and forced hotel staff to revert to pencil and paper while guests queued for hours in lines to check in and out of their rooms.  

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