I think Alvaro should read the classic paper: Reflections on Trusting Trust.
Alvaro, Written by one of the guys who wrote UNIX and the original C compiler, which is what almost every UNIX based system is derived from... http://cm.bell-labs.com/who/ken/trust.html -- http://www.glumbert.com/media/shift http://www.youtube.com/watch?v=tGvHNNOLnCk "This officer's men seem to follow him merely out of idle curiosity." -- Sandhurst officer cadet evaluation. "Securing an environment of Windows platforms from abuse - external or internal - is akin to trying to install sprinklers in a fireworks factory where smoking on the job is permitted." -- Gene Spafford learn french: http://www.youtube.com/watch?v=30v_g83VHK4