MGM ‘cybersecurity issue’ shuts down slot machines and ATMs in Las Vegas casinos

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Illustration by Carlo Cadenas / The Verge

A “cybersecurity issue” at MGM Resorts has forced the famous hotel and casino company to shut down many of its systems, according to a statement the company posted just before noon ET on X (formerly Twitter). Late on Monday evening, MGM shared another message on X, saying, “…our resorts, including dining, entertainment, and gaming, are currently operational, and continue to deliver the experiences for which MGM is known,” and that front desk staff can assist guests as needed.

A ransomware group named ALPHV / BlackCat claimed responsibility, according to a post on X, formerly Twitter, from malware tracker vx-underground (via Engadget), saying they received the information directly. The unverified post alleges that the group used a social engineering attack, calling the company’s help desk with an MGM Resorts employee’s information they found on LinkedIn.

MGM replaced its homepage with a message apologizing for the site’s outage and providing a list of concierge phone numbers at several locations, like the Aria, The Cosmopolitan, Mandalay Bay, Bellagio, New York-New York, and Vdara.

The issue isn’t limited to MGM’s Las Vegas locations. NBC 10 News in Philadelphia reports that MGM’s Borgata Hotel in Atlantic City was likewise affected by the attack, though hotel representatives didn’t say how. MGM Grand Detroit Casino is also affected, reports Play Michigan, with an X user posting that the casino “has all games running” but that digital keys and MGM’s rewards program are down.

ABC 13 News in Las Vegas confirms the FBI is currently investigating and has been in contact with MGM since Sunday. The outlet reports that hotel guests were unable to access ATMs, buy food, or use their digital room keys. Posts from hotel guests on Monday said staff were using pencil and paper to keep track of things.

A post on X this morning showed disabled slot machines at the Aria Resort and Casino in Las Vegas. The X account Las Vegas Locally claimed in a post citing “an insider” that MGM Resorts is the victim of a ransomware attack, though that has not been confirmed. Another X user named Murphy posted a picture they say is from MGM Grand, where slot machines are also apparently out of service.

@LasVegasLocally Everything down still. No ATMs. No Withdrawals from Cashier. Now all the slots seem to be going down pic.twitter.com/iZtQjcGohp

— connor o’brien (@ob1989) September 11, 2023

Tech issues continue at MGM Resorts as company officials work with law enforcement to investigate a “cybersecurity incident”. Several slot machines were spotted not working at the @AriaLV this morning.

[ : @bryanhorwath]

READ MORE: https://t.co/diVQq7I19P pic.twitter.com/pKCXivEOnD

— KTNV 13 Las Vegas (@KTNV) September 11, 2023

Update September 12th, 1PM ET: Added the most recent update from MGM.

Update September 13th, 12:10PM ET: Added claims reported by vx-underground.

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MGM ‘cybersecurity issue’ shuts down slot machines and ATMs in Las Vegas casinos

Illustration by Carlo Cadenas / The Verge

A “cybersecurity issue” at MGM Resorts has forced the famous hotel and casino company to shut down many of its systems, according to a statement the company posted just before noon ET on X (formerly Twitter). Late on Monday evening, MGM shared another message on X, saying, “…our resorts, including dining, entertainment, and gaming, are currently operational, and continue to deliver the experiences for which MGM is known,” and that front desk staff can assist guests as needed.

A ransomware group named ALPHV / BlackCat claimed responsibility, according to a post on X, formerly Twitter, from malware tracker vx-underground (via Engadget), saying they received the information directly. The unverified post alleges that the group used a social engineering attack, calling the company’s help desk with an MGM Resorts employee’s information they found on LinkedIn.

MGM replaced its homepage with a message apologizing for the site’s outage and providing a list of concierge phone numbers at several locations, like the Aria, The Cosmopolitan, Mandalay Bay, Bellagio, New York-New York, and Vdara.

The issue isn’t limited to MGM’s Las Vegas locations. NBC 10 News in Philadelphia reports that MGM’s Borgata Hotel in Atlantic City was likewise affected by the attack, though hotel representatives didn’t say how. MGM Grand Detroit Casino is also affected, reports Play Michigan, with an X user posting that the casino “has all games running” but that digital keys and MGM’s rewards program are down.

ABC 13 News in Las Vegas confirms the FBI is currently investigating and has been in contact with MGM since Sunday. The outlet reports that hotel guests were unable to access ATMs, buy food, or use their digital room keys. Posts from hotel guests on Monday said staff were using pencil and paper to keep track of things.

A post on X this morning showed disabled slot machines at the Aria Resort and Casino in Las Vegas. The X account Las Vegas Locally claimed in a post citing “an insider” that MGM Resorts is the victim of a ransomware attack, though that has not been confirmed. Another X user named Murphy posted a picture they say is from MGM Grand, where slot machines are also apparently out of service.

@LasVegasLocally Everything down still. No ATMs. No Withdrawals from Cashier. Now all the slots seem to be going down pic.twitter.com/iZtQjcGohp

— connor o’brien (@ob1989) September 11, 2023

Tech issues continue at MGM Resorts as company officials work with law enforcement to investigate a “cybersecurity incident”. Several slot machines were spotted not working at the @AriaLV this morning.

[ : @bryanhorwath]

READ MORE: https://t.co/diVQq7I19P pic.twitter.com/pKCXivEOnD

— KTNV 13 Las Vegas (@KTNV) September 11, 2023

Update September 12th, 1PM ET: Added the most recent update from MGM.

Update September 13th, 12:10PM ET: Added claims reported by vx-underground.

Disclaimer

We strive to uphold the highest ethical standards in all of our reporting and coverage. We StartupNews.fyi want to be transparent with our readers about any potential conflicts of interest that may arise in our work. It’s possible that some of the investors we feature may have connections to other businesses, including competitors or companies we write about. However, we want to assure our readers that this will not have any impact on the integrity or impartiality of our reporting. We are committed to delivering accurate, unbiased news and information to our audience, and we will continue to uphold our ethics and principles in all of our work. Thank you for your trust and support.

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