How to setup Litespeed LSWS for a shared environment?

[grniyce]

Is there a subject matter expert that can guide me on how to setup LSWS for a secure shared webserver. I know that is a blind request, but let me explain what happened in the past. I host some friends and so forth. We one friend shared his cpanel with his partner whom had his identity stolen. Then this unknown decided to upload some script which allowed him to gain access to the root of the server, and virtually deleted everthing; leaving me with a ton of refunds and headaches for over a month. I was using LSWS at the time, however I don't know why mod_security didn't catch the script.

Please tell me what you need to know to give me the information I need, and I will provide it.