# Computer hacking, including the following types of activity: 

     1. Hacker (programmer subculture), activity within the computer programmer subculture
     2. Hacker (hobbyist), to heavily modify the software or hardware of one's own computer system
     3. Hacker (computer security), to access computer networks, legally or otherwise
     4. Computer crime

#  Illegal taxi cab:
     The juridiction for the taxi cab owners or the drivers are there for driving but they hacked and many other taxi's operate in the name of the one i.e hacked taxi cabs.It is mostly prevelent in the bigger cities where there is a huge demand of the taxi and people are in plenty to travel at any cost. Usually according to the survey and results done it has come to understanding that the taxi's which are not having permit and are illegal end up having much business and people have also fun in riding on them as they charge less as compared to the original taxi licencer holder.
The best example is from our country only. Mumbai where there is lot of taxi which are illegal but they do a great business...