Brandon Carroll of DataNetworkingTalk.com comments:
In most cases the answer to that question is no. In fact, most of the time, an attack against the network is going to be performed using common attack vectors. Often times these attack vectors involve a human element that could have prevented the attack in the first place. What are some of these common attack vectors? Well let’s start out with the basics.
It’s surprising how easy it is to get past “unbreakable” security with some simple tricks. Like kicking in a door with a keypad lock.
Read more at: Are Cyber Attacks Really That Sophisticated?