Anyway to hack into my SKy digibox?

hi, i have heard and read that the SKY digibox can be installed with a chip which will enable to view some or nearly all the channels for free!!!

does any body know if it works, or any links to the info? i cant find it anywhere!!!

proof is that my mate got it done from sum random person on the street who claimed it works, dat person charged my mate £80 and it works. my mate has been watchin those free channels for over 3 yrs now without a problem.

i wud appreciate if u cud reply asap. i dnt mind opening up my digibox. but i do not have access to my friends as he lives far from me.

thanx in advance for the info!!!!!!!!!!!!!!