Grimfate76

So when I go and click on Skyrim, Oblivion, and Fallout mods I get ads that force open a new tab. Recently the two I got were one that my browser caught and said was a malicious site while the other one that popped up recently was a ad saying that I had five viruses that used the McAfee theme. Is this a new problem that can start giving off viruses just by loading open, if so would it be advised to not use the site until this is fixed?