A hackers' internet chat site includes telephone numbers of Government systems which they have successfully hacked. Most of the hackers like to boast about how far they have got, but rarely do damage. One of the aims of the new drive is to block all these access points. Staff from GCHQ, who have accessed the hackers' networks, quickly close points which have been penetrated. There are programmes to kick out random passwords and combinations.
Most people hack just to say they can do it.
But people who really hate the Government are much more dangerous. There are some fruitcakes out there. They won't just look and leave a nickname. They will delete files and change passwords. An alarm goes off at Racal's headquarters every time there is a security breach and security staff track the infiltrator.