yes partly true but fwalls learn as you go along,by then it can be too late unless your an experienced user.i don't have a fwall at all and my pc is clean as a whistle.and ahem as you know i do use newsgroups and regually sort friends pc-s out.i can put them fwalls on but it will warn them of a site but little jonny will still dload from dodgy site.then you need a top a/v and nod 32 is generally reckoned to be one of the very best.