Recently I was asked by a fellow lawyer about how secure his network is from hackers. I told him that it all depends. I remember my father saying that locks keep only honest people out. I now believe that that saying is only partially true.
Locks also make the crooks keep looking for easier targets.
To make your network secure, you must lock it up. Then the hackers will move on to an easier target. There are two types of security problems with computers. The one that get the most press is that caused by hackers. The other problem is not a sexy by is just as much of a danger.