My site keeps getting hacked with fecking Iframe hacks. It's running on Wordpress and I've installed the antivirus plugin which is supposed to remove Iframe hacks but I keep getting them. I have to remove them manually everytime and it's driving me nuts! Is there anything else I can do about this? I've changed all passwords and everything I can think of but my site has been brought down 3 imes in the last few days. Is it my host that is too lax on the security side or can I do anything else to improve security?