have cheats, don't have cheats, I'm not really bothered
although
(I'm pretty sure steam will vac ban you for having any sort of cheats on your computer when you play games on steam so you might be able to play civ multiplayer after downloading un-official cheats, but you won't be playing l4d or counterstrike nemore.)
Fairly sure, Vac servers need to be played on and scan you before that happens,
@Greg, fair enough, but they might be utilised at some point for all I know, in the future multiplayer modes that haven't been created yet. But yes, as for release, no Vac secured servers will be used as you confirmed already.