He not only broke into the Whitehouse switchboard in 1981, but he also managed to hack the AT&T phone network and dial their internal clock forward  (giving many phone subscribers discounted long distance).

Oddly, the State of Pennsylvania charged Ian Murphy with "theft", but no formal charge of computer-related crime.

Today, Ian is the CEO of IAM/Secure Data Systems , a company that specializes in protecting business networks.

More on Ian Murphy's conviction here