In the ideal world we would not have to worry about hackers hacking into our networks and computers. However, that is an impossible dream. There are countless stories these days of some company’s system being broken into. Life would be so much easier if we could just set up our networks and trust that nobody would try to do anything harmful to us. But there are people with ulterior motives, just as there exists good and evil. So when we try to open up our computer networks and then get a computer virus or Trojan horse we realize we have to be more protective of our networks to keep bad things out. On a larger scale this might produce more secure networks, but can also stifle growth and opportunity. For example an administrator might want to limit which ports are accessible to the internet, but this could also limit which programs can communicate. Therefore there needs to be a certain level of trust built into our networks if we want more freedom. Otherwise the system becomes chaos and anyone can do what they want at anytime.
The Internet brings us many great services, but at the same time many dangers. If we let our guard down and trust too much in what we see in web sites our faith in what is really correct will dwindle. With great power comes great responsibility.