http://money.cnn.com/2014/04/09/technology/security/heartbleed-bug/index.html

This is apparently a huge security hole in the Internet.

Anyone using Gmail, Yahoo, Google, and ...

are being advised to update/ change their passwords.

http://money.cnn.com/2014/04/10/technology/security/heartbleed-passwords/

http://www.cnet.com/how-to/which-sites-have-patched-the-heartbleed-bug/

From CNET. ^^^

This bug permits invasive data tracking.