As you've probably heard there is a flaw in OpenSSL called the Heartbleed bug that is effecting millions of secure websites. You can read all about the vulnerability and the effects on Bruce Schneier's blog and you can even test a web site using this tool.
We take security seriously and part of security is being open. Once the news hit that there was a critical vulnerability concerning SSL we immediately took action to evaluate if we were vulnerable. We are happy to say we are not vulnerable, and even though we expected the result we still fully investigated the issue to be sure.