MGM Resorts shuts down website, computer systems after ‘cybersecurity incident’

MGM Resorts has shut down some of its IT systems following a “Cybersecurity incident” that the casino-and-hotel giant says is currently under investigation.

While MGM didn’t specify which parts of its IT environment had been hit – or provide any specific details about the snafu – the MGM Resorts website was down as of Monday afternoon, and a concierge at one of the hotels told The Register that all digital operations are being performed manually because the outage had taken down computer systems across the leisure goliath’s empire.

Guests at some of the properties, which include Aria, Bellagio, Luxor, MGM Grand, and Mandalay Bay in Las Vegas, took to social media to report a slew of disruptions affecting ATM and credit card machines, digital room keys, slot machines, and other electronics systems.

Remember we’re talking about MGM Resorts here: its customer info was previously stolen and sold via cybercrime forums and then dumped on Telegram for free.

While those pilfered records were packaged up and peddled on a dark-web marketplace the following year, in May 2022 someone dumped more than 142 million MGM Resorts customers’ data on Telegram for anyone to download at no cost.

MGM Resorts is being sued over the data security breach, which a class action lawsuit [PDF] says affected as many as 200 million people.

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