@Freddie
Careful - it is nothing to do with ECF in any way.
Any website in the world can do this - it is called an iframe.
If you feel that you have been personally attacked then you should complain to the domain registrars and the website hosting of the attack site. We will also be doing this.
All we did is fix it so they couldn't use our front page on their site for a redirect. There is nothing we or any other website can do to stop people setting up an iframe attck of this type - all anyone can do is complain to the domain registrars and website hosts.
I'll explain how it is done, then you can see it is nothing to do with us. You just put some code on a page of your website that says, "in this block, display website XXX". That's all it does. And of course if you are logged into website XXX, then you will see your personal pages there.
The main thing the spammer does is to publicize the link. Whoever posted the link up on to the web first is the owner of the spam site. Note that they can also add code to their site to get your personal info, if they want to. However, this sort of person is a spammer and general troublemaker, who is not clever enough to be a hacker.