Uplink (the game)
Has anyone of you played it? I got it when it first came out in 2001, now you can get it from Steam for $9.95.
It's a great game, you get to hack into banks, corporate mainframes and LANs etc.(fun fun fun) using password breakers, decyphers, proxy/firewall/monitor disablers and bypassers. Once you start hacking a active trace starts and you have only limited time to hack. After you've done what you need to do, you have to delete logs to prevent them from getting to you through passive tracing.
You start in basics, you hack into a simple server with only a password protection and steal or delete information. After that you get to hack into goverment servers wich hold academic/criminal/personal information and change 'em. Then the good stuff, you get to destroy a whole mainframe, hack someones bank account to check their balance/transfers (or steal money for yourself, 8x 200Ghz cpus cost money! It's hard though, you got like 20 secs to delete any evidence of the money transfer and your connection.). This goes on, don't want to give everything away.
After you've completed a couple missions you can start buying new software and hardware to hack faster and better. You start with a gateway with 1 cpu slot (60Ghz cpu), 24Gq memory(32Gq max), 1Gq net and no security slots. The best rig has 8 cpu slots, 96Gq memory, 8Gq net and 3 security slots (you need only 2, a motion sensor and a gateway nuke). If you get cought for the hack, in the beginning you get a fine, later on it's game over if you don't have the the nuke to blow up the gateway when the feds come.
http://www.uplink.co.uk/