This is just a guess but looks like something was changed with the site. When I used to go to 68forums.com I had to click on a link to get to the actual Forums page. Now it looks like 68forums.com is redirected to 68forums.com/forums. Some software detection programs see that as a misdirect(redirects can be malicious) and a possible exploit. It's nothing but a warning and AFAICT all looks ok.
Yesterday when I try to access the site from 68forums.com there was a message stating the the site has been hacked. I then went to the actual forum page, which we are bring redirected to know, and everything was up.