I just use the free AVG mal-ware prevention myself.

I should probably let @Admin know that AVG or Fire Fox, I am not sure which, will sometimes suddenly block the site while I am browsing, saying the site is not secure. Seems to happen randomly. Also, several times all of a sudden all the sit elinks stop working and Ihave to close the browser and reload the site. I usually wait until ih ave a better idea of what is going on before bothering Admin, but since you brought it up, it seems I am not the only one, and perhps there are other random mishaps that can be traced back to a single bug, so Ihoep this provies clues for Admin. At worst it will be somethign to keep the back of his mind whiel fixing other things.