Not so much circumventing the system, as the better hackers usually do.
Yeah well I suppose this is one of the problems, people think that one who can circumvent some system is somehow a threat to them or society.
Most hackers now are relegated to fixing stuff that is broken and the only time that they ever get any media coverage, it is negative, complaining about how many millions of pounds/dollars will be lost from people circumventing PS3 security and playing pirated games for example.
There are so many intelligent, technologically minded people who get branded as 'hackers' and then feel afraid of fulfilling their potential.
Mowcius