"He is accused of leaving 300 computers at US Naval Weapons Station Earle in New Jersey unusable immediately after the September 11 2001 terror attacks on America.
US prosecutors also allege he deleted files which shut down the US army's military district of Washington DC network of more than 2,000 computers for 24 hours."
How can this be believed? They are just pissed that he got in and snooped around the network, and as he describes it was very easy to get in at the time with very weak administrator accounts passwords. They just want to scare away any individual hackers who want to get into US government servers.
Some people complain like "he admitted he hacked into the computers though ? so is he getting away scott free ?". He has been under strict surveillance for 10 years, the stress of extradition to US glooming over him everyday. He already served his "punishment" in this way for breaking and entering. He didn't see or leak any classified information that people would believe in. Nothing Wikileaks worthy anyways. He didn't do what USA tells the world he did. Do you really think such systems will be available to the world with weak/default account logins? He only saw some UFO looking aircrafts that no one pays attention to. Why would you want to sentence him for life for that? Pointless.