People walk in front of the MGM Resorts International Bellagio Resort & Casino in Las Vegas, Nevada, on Tuesday, March 17, 2020.
Joe Buglewicz | Bloomberg via Getty Images
Casino and lodging operator MGM Resorts shut down a number of its computer systems including its website in response to a “cybersecurity issue,” the company said in a social media post Monday.
The initial shutdown impacted nearly every aspect of the casino operator’s business. Reservation systems, booking systems, hotel electronic key card systems, and the casino floors were all apparently impacted by the outage.
The company’s email systems were also apparently taken down in response to the cybersecurity issue, and have not yet come back online.
The company said that as of Monday evening, their casino floors were back online. But the reservation systems that power their thousands of hotel rooms and the booking system that controls reservations for their restaurants are apparently still down, more than a day after the first reports of the incident began to circulate.
MGM operates thousands of hotel rooms across Las Vegas and the United States. Revenue from their hotel rooms in Las Vegas outstrips the revenue directly attributed to their casino operations, according to SEC filings. The company reported Las Vegas rooms revenue of $706.7 million for the quarter ended June 30, compared to casino revenue of $492.2 million for the same period.
“We quickly began an investigation with assistance from leading external cybersecurity experts,” MGM said in a post on X, formerly known as Twitter. “We also notified law enforcement and took prompt action to protect our systems and data, including shutting down certain systems.”
The FBI confirmed that it was aware of the “ongoing” incident but did not provide further information.
MGM shares closed down nearly 2.4% on Monday.
MGM’s website has been replaced by a landing page advising that patrons contact their hotels or casinos directly via phone. It wasn’t immediately clear when the outage started, although some users on social media reported that MGM’s systems were down as early as Sunday night.
The company has had cybersecurity incidents in the past. In 2020, the personal details of more than 10 million MGM visitors were published on a hacking forum. The information was exfiltrated in the summer of 2019, the company said at the time.
The scope of the government response, beyond the FBI involvement, was not immediately clear. The government identified the “commercial facilities sector,” which includes gaming and lodging, as critical infrastructure in 2003.
“A large communications failure or intentional cyberattack could substantially disrupt payments and basic operations, compromise customer and company data privacy, threaten company integrity and reputation, and create large legal and economic burdens,” the Department of Homeland Security warned in a 2015 sector-specific plan.
Nvidia CEO Jensen Huang delivers remarks next to U.S. President Donald Trump at an ‘Investing in America’ event in Washington, D.C., on April 30, 2025.
Leah Millis | Reuters
Nvidia CEO Jensen Huang will meet with President Donald Trump at the White House on Thursday, CNBC’s Megan Cassella reported.
The meeting comes as Nvidia rose slightly on Thursday, becoming the first company to close a trading day with a market cap over $4 trillion, beating Apple and Microsoft to the symbolic milestone. Nvidia touched the mark briefly on Wednesday during trading.
Trump praised Nvidia stock in a social media post Thursday morning.
“NVIDIA IS UP 47% SINCE TRUMP TARIFFS. USA is taking in Hundreds of Billions of Dollars in Tariffs,” Trump posted on Truth Social. “COUNTRY IS NOW ‘BACK.'”
An Nvidia representative declined to comment, and it was unclear what the meeting is about, but Nvidia has been grappling with export controls on its artificial intelligence chips implemented by the Trump administration in April for national security reasons.
At the time, the U.S. government told Nvidia that its previously-approved H20 processor — intended exclusively for the Chinese market — would require an export license. Huang previously told investors that requirement effectively cut off Nvidia’s sales to China with “no grace period.” The AI chipmaker said that it would miss $8 billion in planned orders for the chip in the company’s July quarter.
“The $50 billion China market is effectively closed to U.S. industry,” Huang told investors on an earnings call in May.
Nvidia also faces another potential restriction on AI chip exports after the Trump administration cancelled a planned rule by former President Joe Biden called the “AI diffusion rule.” The Trump administration promised newer, simpler restrictions later this year on which countries could receive Nvidia’s technology.
Ex-CNN anchor Don Lemon‘s lawsuit against tech billionaire Elon Musk and his social network X over the cancellation of their partnership can proceed to trial, a San Francisco judge ruled this week.
Musk’s team had tried to get the case moved to a Texas court and tried to convince the judge to strike the complaint altogether.
Attorneys for Musk and X didn’t respond to a request for comment.
In an order Tuesday, Judge Harold Kahn said Lemon and his attorneys plausibly alleged, among other claims, that X and Musk had committed “fraud by false promise” and that there was “an implied contract” between them.
Lemon filed the suit in August 2024 after X canceled a partnership with the broadcast journalist a few hours after he taped a tense interview with Musk, who owns X. The interview preceded a planned premiere of Lemon’s new show on Musk’s social network.
During the interview, Lemon pressed Musk on several contentious topics he had posted about or amplified on X. Musk had boosted the so-called “great replacement theory,” and other bigoted tropes and falsehoods, including posts that claimed there was a “Hispanic invasion” of immigrants to the U.S.
Read more CNBC tech news
Lemon also pressed Musk about content moderation on X, and a reported surge in antisemitic content on the platform that occurred after Musk acquired it as Twitter in a $44 billion leveraged buyout in late 2022.
Musk made sweeping changes after taking over the site, firing huge numbers of personnel and reversing account bans for users who had been booted from the platform after posting hate speech or inciting violence.
Musk, who characterized himself as a free speech “absolutist” also restored the account of President Donald Trump. The site had permanently banned Trump from the platform in January 2021 following the attack by his supporters on the U.S. Capitol.
Lemon’s case against Musk and X Corp. is in San Francisco Superior Court. A date has not been set for the trial.
Musk and X have faced a litany of other lawsuits over non-payment to vendors and over failure to provide severance as promised to laid-off employees from Twitter.
Lemon was fired from CNN in 2023 following reports that he mistreated coworkers and made sexist remarks on-air, including about politician Nikki Haley. Lemon later apologized for the Haley comments.
Bitcoin climbed to new all-time high on Thursday, building on its previous record reached just a day earlier, as investors jumped into risk assets and liquidated short positions.
The price of the flagship cryptocurrency was last higher by about 2% at $113,459.16. Earlier, it rose as high as $113,863.18.
On Thursday afternoon, bitcoin saw about $318 million in short liquidations across centralized exchanges in a 24 hour period, according to CoinGlass. When traders use leverage to short bitcoin and the cryptocurrency’s price rises, they buy bitcoin back from the market to close their positions, which pushes the price up and causes more positions to be liquidated.
Stock Chart IconStock chart icon
Bitcoin this week
Don’t miss these cryptocurrency insights from CNBC Pro: