In a massive security breach, Ticketmaster was allegedly hacked and 560 million customers were reportedly affected. It is not yet known when the alleged crime took place.

Hacker group ShinyHunters claims they stole personal information including customers' names, addresses, credit card numbers and phone numbers – and the team is willing to sell the entire data set for $500,000.

Although Ticketmaster has not publicly addressed the hack, according to HackRead.comShinyHunters says they have tried to contact Ticketmaster to get a response.

The breach mainly affected customers in Australia, although Ticketmaster is based in Los Angeles. It has been evaluated that Ticketmaster has an average of 113.6 million average monthly users globally.

“The Australian Government is aware of a cyber incident affecting Ticketmaster,” a spokesperson for Australia's Department of Home Affairs told CBS News in a statement. “The National Cyber ​​Security Office is engaging with Ticketmaster to understand the incident.”

Connected: Justice Department continues lawsuit against Live Nation-Ticketmaster

A spokesman for the US Embassy in Canberra, Australia said the FBI is offering to assist the Australian government with the investigation, according to CBS.

Last week, the US Department of Justice filed a federal lawsuit against Ticketmaster and parent company Live Nation in the Southern District of New York accusing the company of unlawfully monopolizing the ticket seller and entertainment industry and preventing fair competition.

Connected: As a side hustle reselling tickets brings in $30,000 a month

This, in part, was brought about by 2022 ticket fiasco during sales for Taylor Swift's The Eras Tour – public sales were suddenly canceled for certain shows, pre-sale codes didn't work, and technical difficulties and high wait times in virtual waiting rooms marred the experience.

In January 2023, Ticketmaster said the issue was related to scalper and bot.