Computer security is a wide subject but the weakest link is always the human in the system either during the first setup or the day to day usage of the system.
Humans are known to be error prone and that is not limited to just one person and also our humanity makes us vulnerable to alot of attacks like phising, social engineering e,t.c its our humanity and our aim to be humans that makes us soo. I always listen to this song by armin van buuren that says everyone is connected but no one is connecting that statement can wrap up all this.
As humans we have to be conscious always of our surroundings we should not let the normal lull us into thinking everything is fine. Our constant vigilance is what keeps the system safe and am not talking about computers alone all systems, we should not ignore something saying that its too small, nothing is too small not to matter.OVER and OUT.