(CNN) - Websites are racing to patch the Heartbleed bug, the worst security hole the Internet has ever seen.
As sites fix the bug on their end, it's time for you to change your passwords. The Heartbleed bug allowed information leaks from a key safety feature that is supposed to keep your online communication private -- email, banking, shopping, and passwords.
Don't change all your passwords yet, though. If a company hasn't yet updated its site, you still can't connect safely. A new password would be compromised too.
Many companies are not informing their customers of the danger -- or asking them to update their log-in credentials. So, here's a handy password list. It'll be updated as companies respond to CNN's questions.
Change these passwords now (they were patched)
- Google, YouTube and Gmail
- Yahoo, Yahoo Mail, Tumblr, Flickr
Don't worry about these (they don't use the affected software, or ran a different version)
- AOL and Mapquest
- Bank of America
- Capital One bank
- Charles Schwab
- Chase bank
- HSBC bank
- Microsoft, Hotmail and Outlook
- PNC bank
- TD Ameritrade
- U.S. Bank
- Wells Fargo
Don't change these passwords yet (still unclear, no response)
- American Express
- Apple, iCloud and iTunes
For more on this story and more, check out CNN's website.