Posted at: 04/10/2014 11:10 PM
Experts say what has been dubbed the 'Heartbleed' bug left about a half million websites, including some of the most widely-used, vulnerable to hacking.
Most companies are standing by their statements that say customer information is safe.
But Professor Pete Willemsen, with UMD's computer science department, says there are a few things Internet users should do to protect themselves.
"Your best bet is to make sure when you get updates on your computer you do the updates, that will bring security fixes for your operating systems - that's good," Willemsen said. "You should also develop a good password-changing plan so that you have different passwords in different machines and you change them somewhat regularly"
He also says it's up to the companies to patch their software to make it immune to the glitch.
"You are kind of affected directly and indirectly, it's not yours to fix," explained Willemsen.
He says that most big Internet services you use (like Facebook, Amazon, and Google) have likely already updated their software. Now you just need to change your password.
Click here for a link to a search engine you can use to see if a website is still affected.