There is some seriously fallacious bullshit making the rounds in this thread. Most of it due to people equating hackers with god like beings. Hackers cannot magically create connections where no such connection exists. For instance if a system is not setup for remote access that system cannot be hacked. Without a common architecture it is also impossible to hack. Not to mention if the system only functions in high level encryption it is impossible to hack. There are a lot of ways for a system to be impervious to hacking.
The problem for companies is balancing security with the need for functionality. Companies want system access that can take place anywhere through off the shelf hardware. They want to use the internet as their vehicle. They want consumers to be able to access their network. Those desires conflict with the needs of security. Thus there is a tradeoff. Even so it is not impossible for a open system to be prohibitively difficult to hack.
Anyway this notion that all systems can be hacked is bullshit. There are hundreds if not thousands of networks around the world that are never going to be hacked, because it is just impossible to hack into them. They were designed to be that way. Whether they be behind ten feet of reinforced concrete, work with their own operating system, or use encryption that would take longer then the life span of the Universe to unravel.
Also please stop citing Pentagon hacks. The U.S. Military stores classified information in networks that are not internet accessible. They basically limit their exposure. That is why your never going to find out a hacker has found out what the skin of a Nighthawk is made out of, or confirm the existence of the Aurora. It is more like petty burglary, then someone robbing Fort Knox. The hackers have basically hacked office gossip, sloppy subcontractors, and public relations websites.
