As you are probably aware, a major security flaw called the Heartbleed bug has challenged internet security this week. We just published a blog post about Xojo apps and Heartbleed - http://www.xojo.com/blog/en/2014/04/xojo-apps-and-heartbleed.php
Also, if you want to know how it affected Xojo Cloud please read this post - http://www.xojo.com/blog/en/2014/04/heartbleed-and-xojo-cloud.php