Home and Away's Sam Frost unveils dramatic transformation

"We´ve found an ideal partner in Carnival Corporation and look forward to providing our sports betting and iGaming products to its millions of passengers," BetMGM CEO Adam Greenblatt said in a statement. "This is another great opportunity for us to further expand BetMGM´s footprint."

Sports betting is growing rapidly in the U.S. In the four years since a U.S. Supreme Court decision clearing the way for any state to offer legal sports betting, Americans had wagered over $125 billion as of mid-May.

In a post on LinkedIn, Charles Carmakal, chief technology officer at Mandiant Intelligence, called Scattered Spider 'one of the most prevalent and aggressive threat actors impacting organizations in the United States today.'

Caesars has not suffered any disruptions in its customer operations, unlike MGM, which appears to have refused all ransom demands and continues to grapple with the fallout four days after the attack began. 

In its public disclosure, bonus Caesars did not explicitly acknowledge making a ransom payment, but alluded to unspecified 'steps' it has taken 'to ensure that the stolen data is deleted by the unauthorized actor.'

Gaming giant Caesars Entertainment has confirmed it was breached by hackers, in an attack apparently perpetrated by Scattered Spider, the same ransomware gang that incapacitated systems at rival MGM Resorts International.

In a regulatory filing on Thursday, Caesars said it had identified the breach by September 7, just days before a separate ransomware attack on MGM knocked slot machines offline and disrupted other systems.

Referring to MGM, he added: 'One company seems not to have paid, and is dealing with significant and ongoing disruption as well as a barrage of speculative media reporting based almost entirely on claims made by criminals.

Ransomware gangs operate by infiltrating target organizations and encrypting their IT infrastructure, demanding payments which can run in the tens of millions of dollars in exchange for the encryption keys to restore access. 

Scattered Spider primarily relies on social engineering to trick human targets into sharing their login credentials, such as through phony password resets, the security firm Crowdstrike said in a blog post in January. 

The gang, also known as UNC3944, has hit telecom and business process outsourcing companies in the past, but more recently also targeted critical infrastructure organizations, according to analyst reports.