The massive data breach compromising the information of over 500 million Ticketmaster customers has people in Connecticut worried for their online safety.

"Bad people taking whatever information they can and doing whatever they want with it," said Steve Grandinetti from Norwalk.

Ticketmaster customers News 12 spoke to say their information may have been compromised in this latest data breach.

"I'm one of those people that still attends concerts all the time and a lot of times I do go to Ticketmaster – so that means there's a good chance that my information has now been breached," said Rachel Halperin, of Westport.

The stolen data includes credit card numbers, emails, addresses, phone numbers and ticket purchases. Passwords do not appear to have been compromised. But experts advise changing passwords.

“Change your Ticketmaster password and use two-factor authentication. These are some of the first steps I would take," said University of New Haven professor Dr. Vahid Behzadan.

Experts say breaches like this occur because customers willingly trust a platform to store their information. They say the problem is when this information is aggregated with other leaked information.

"It's definitely concerning, and customers should be mindful of how things unfold in the next few months," said Behzadan.

Just a couple of weeks ago, Connecticut joined a massive federal lawsuit to break up Ticketmaster and Live Nation, accusing them of running an illegal monopoly over live events in America.

Experts say breaches increase the chances that customers will become targets of phishing attacks via email or phone number. Live Nation says it is working to mitigate risk to its users.