Much sensitive information is held on pcs. Governments hold specifics of national security plus some personal information about members of the public. Businesses also hold important and confidential facts about pcs. People have data they will often not need other people to gain access to on the home computers, while bank details are yet another good demonstration of data that needs to be kept secure, either if held for the bank’s systems or by people in your house. All this implies that it is important that IT networks are kept secure.
Some people and groups attempt to gain access to secure information. This may be to commit fraud and gain financially or to reap the benefits of people and businesses in various ways. Terrorist groups may make an effort to gain confidential information that they’ll use, and some will hack into networks purely to cause havoc.