Apr 9, 2014 5:02 PM
Websites are racing to fix a security flaw known as Heartbleed.
Security researchers say potential hackers could exploit the flaw to access personal information stores in computer memory, including your email and passwords.
Two thirds of web users use the encryption technology that could be vulnerable to the flaw. The sites are typically indicated by a lock icon in the browser to let you know the information you're sending online is hidden from prying eyes.
Some major websites, including Amazon, Yahoo and Google say they've already taken steps to secure their sites. Security experts are advising web users to update their passwords once they confirm a site has taken steps to fix the bug.
You can check and see if sites you've given personal information are secure by clicking here.