MGM Resorts International has had to turn off some systems at its US sites because of a cybersecurity problem.
 Cybersecurity at MGM
 After reports started to spread on social media, the operator acknowledged the event in a post on X, which used to be Twitter.  Visitors to the MGM Resorts website are still met with a list of important phone numbers. 

 MGM Resorts didn't say which systems are having problems, but players on social media say that retail slot machines and hotel room access are having problems.

 The operator claims it has talked to the police and cybersecurity specialists about the problem, which is said to have started on Sunday.

 "MGM Resorts recently found a cybersecurity problem that affected some of the company's systems," MGM Resorts said on X yesterday (11 September).  "We started an investigation right once after finding the problem, with help from top outside cybersecurity specialists.

 "We also called the police and took quick steps to protect our data and systems.  Some systems had to be turned off as part of this.

 "We are still looking into this and working hard to figure out what it is and how big it is."

 MGM Resorts said in an update 12 hours later that its hotels and casinos are still open for dining, entertainment, and gaming.  It also said that staff on site will help clients with any problems.

 In the US, MGM Resorts runs 19 hotels.  These places are in Nevada, Maryland, Massachusetts, Michigan, Mississippi, New Jersey, New York, and Ohio.  We don't know yet how many places have been affected by the problem.

 The FBI thinks the Lazarus Group is to blame for the Stake.com hack.
 Last week, Stake.com, an online sportsbook and casino that accepts cryptocurrency, was struck by a number of unauthorised transfers.

 Stake.com found problems with Ethereum, Polygon, and the Binance Smart Chain (BSC).  At the time, reports said that $41.0 million worth of cryptocurrencies had been affected. 

 Later in the week, the FBI said that the Lazarus Group was the group behind the cyberattack.

 Lazarus Group, also known as APT38, is linked to the Democratic People's Republic of Korea (DPRK).  The FBI said that cybercriminals transmitted the stolen money from Stake.com to a number of virtual currency locations.