7. Hackers

A hacker is a person who breaks codes and passwords to gain unauthorised entry to computer systems. (Some would say that this refers to a 'cracker')

Hackers / Crackers can do an enormous amount of damage if they break into a computer system.

For some people, the challenge of breaking the codes is irresistible and so precautions have to be taken.

Stand-alone computers are usually safe as there is no connection for the hackers to break into. Computers which form part of networks or those with external links, such as attached modems, are in danger from hackers.

Many hackers often have no specific fraudulent intent, but just enjoy the challenge of breaking into a system. However, in some instances the hacker's purpose could be to commit fraud, to steal commercially valuable data or to damage or delete the data in order to harm the company. It is often carried out by corrupt employees or employees with a grudge. They may have insider knowledge of passwords and User IDs which makes it easy for them.

The extent of hacking is difficult to assess, much of it is only discovered by accident.