no doubt its illegal, but would love to know how you can do it so i can try it myself. lets face it, speeding is illegal and we all do it occasionally. Revenge is sweet and applying your method would not have the potential to cause an accident so I would consider it less of an offence. ITS STILL WRONG THOUGH
This is an offense under section 3 of the computer misuse act 1990.
I believe it would carry a maximum prison sentence of six months or a maximum fine of 2000 or both.
Many people find hacking into poorly secured computers very simple, this said, many people find shoplifting very simple; the ability to do something does not make it correct or legal.