SDN Members don't see this ad. (About Ads) Anyone else ever have this problem? I have no problem logging into my e-mcat account from home, and up until yesterday I could log into it from work without any problem. However, yesterday when I tried to log in I got hit with a page simply saying "security validation failed", although eventually I was able to log in, and when I got home later that night I had no problem logging in at all. Today I'm getting the same thing again, except now it seems like this error is here to stay. Anyone know what's going on? I can't find any information about what this error means anywhere.