This is an important notification to ALL users who have kloxo installed on their servers. There has been a 0-day exploit for the Kloxo software in which allows malicious intent. Your kloxo installation can be compromised and can be used to send outbound denial of service attacks. We urge that all clients disable their kloxo installations. If your service is compromised and you begin sending an outbound attack then we will be forced to immediately suspend your service until a patch is released that fixes the issue.
More information regarding this can be found at the below webhostingtalk thread.
http://www.webhostingtalk.com/showthread.php?t=1344003