This server is quite powerful and sits on a very fast internet connection (1000 Mbps). Hackers attack the server to gain control of its core functions. First they use it to send out millions of fraud SPAM emails, then they use it to brute force attack other servers.
It is always a running battle with them.
They actually hacked SmartMania that also runs on this server.
I have upgraded the server, increased the security, closed as many security holes that I can find.
I have also upgraded the software that this site uses from 3.5.4 to 3.6.8 (the latest release) but that ment spending more money

. However now with the adsense running over a year the site should pay for itself.
I have a few more thing to do on this site, but then it should all be good.