graeme_p - 12:37 am on Aug 19, 2011 (gmt 0)
Chrome is interesting because it AUTOMATICALLY UPDATES ITSELF.
Does that mean it runs as admin? That sounds like a massive security hole in itself.
The right way to keep software up do date is to use a centralised update mechanism that updates everything, like Linux does (incidentally, Linux users with older browsers will usually have the security fixes from the new releases back ported and applied though the normal updates).