Gary McKinnon. Is he a dark hat or is he a white hat hacker cracker thing?
He openly admits to having hacked into the computer systems of the US forces including NASA. He did so over the course of 2 years from 2000 to 2002.
Today British courts have said that the US are free to extradite him.
What fascinates me is that he says he was looking for evidence of extra terrestrial space craft knowledge. Read: Hacker fears 'UFO cover-up' (BBC News). What's more, he found the evidence. Read the article. He also found evidence of suppressed technologies; i.e. that US scientists had backwards engineered technology found in capture alien spacecraft and worked out how, for instance, to create FREE energy (from matter) and antigravity.
But there are some rather big holes in what he says. He claims he kept no documents or pictures. Really? I know that I would have done.
That said, I really don't want to see him go to prison and his hacking exploits have helped the US Forces patch up security black holes.