Australian Ticketmaster customers have been told to change their passwords and check their bank accounts after the ticketing sales website suffered a global data breach.

It is understood that the cyber attack could have compromised the personal or payment data of up to 40,000 customers in the United Kingdom who recently bought tickets on the platform.

Ticketmaster Australia could not guarantee to The New Daily that Australian customers’ data is safe.

“There have been no confirmed incidents outside of the UK,” a spokesman told The New Daily.

“As a precaution, we are advising all Australian customers who purchased or attempted to purchase tickets on Ticketmaster between September and June 23 to reset their passwords and, most importantly, to check their financial records.

“We have no evidence that Australian customer details have been compromised.”

Certain Australian users were notified by email of the breach on Thursday morning.

“As a precautionary measure, all notified customers will need to reset their passwords when they next log into their accounts,” the email read.

“We are offering impacted customers a free 12-month identity monitoring service with a leading provider. To request this service please visit this page.

“We recommend that you monitor your account statements for evidence of fraud or identity theft. If you are concerned or notice any suspicious activity on your account, you should contact your bank(s) and any credit card companies.”

The identity monitoring service appears to be offered only to customers in Britain, Australia, New Zealand, Ireland, Germany, France and Spain.

Ticketmaster UK identified malicious software on a customer support product on June 23, hosted by external third-party supplier Inbenta Technologies.

The Inbenta product has since been disabled across all Ticketmaster websites.

Ticketmaster said about 5 per cent of its global customer base has been affected by the incident.

“Forensic teams and security experts are working around the clock to understand how the data was compromised,” a Ticketmaster spokesman said.

“We are working with relevant authorities, as well as credit card companies and banks.”