The Heartbleed bug (http://en.wikipedia.org/wiki/Heartbleed_bug) is a serious vulnerability in OpenSSL 1.0.1 through 1.0.1.f.

This vulnerability allows an attacker to read chunks of memory from servers and clients that connect using SSL through a flaw in OpenSSL's implementation of the heartbeat extension. OpenSSL provides critical functionality in the internet ecosystem, and therefore vulnerabilities, such as Heartbleed, have a significant impact on digital communications and their integrity.

You can use the link below to do an SSL test for any domain name to see whether it is vulnerable to the Bleeding Heart Bug:

https://www.ssllabs.com/ssltest/

For those of you using Firefox as a browser, you can click the link below to install an extesion into your browser that will test every site you visit and warn you if it is vulnerable to the bug as well:

https://addons.mozilla.org/en-US/firefox/addon/foxbleed/