TAMPA, Fla (WFLA) — A Tampa cyber security expert is urging computer users to change their passwords. The advice comes after confirmation of a Yahoo security breach affecting 500 million users.

The stolen information includes users’ names, dates of birth, hashed passwords and security questions.RELATED: Yahoo confirms huge data breach affecting 500 million accounts

Sri Sridharan is the managing director and chief operating officer at the Florida Center for Cyber Security at the University of South Florida. He believes, even if you aren’t a victim in this breach, it pays to protect yourself.

“You’ve got to take steps to make sure you’re well protected,” Sridharan said. “And one of the first things you can do, whether or not you are one of the 500 million that were breached, you should go ahead and change your password to a complex password that people cannot easily guess. ”

At Tampa International Airport, a number of passengers and employees were just learning about the breach. Kenny Nguyen was about to board a flight to Denver and said the revelation is troubling.

“It’ s pretty alarming; I mean it’s pretty scary to think about especially now a days in the digital age where everything is on line,” Nguyen said. “So if your accounts get stolen, there are a lot of things that can really go wrong.”

Regina Bush works at the newly opened Hard Rock Cafe at the airport. She was shocked when she learned about the hack.

“Because I’m always using the internet, because I’m always using, online, my credit card,” Bush said. “So that is crazy.”