Computers under Attack

Computers under Attack

    Computer viruses can be classified into three types. One type is known as a Trojan Horse. It is created to obtain credit card details or bank password. Another danger kind of virus is Spyware. It gathers information about the computer's owner. A more common, but less dangerous problem is Spam or unwanted advertising. It is used for deceiving people and getting money from them. (Philpot, 2011: 47)

Reference: Philpot, S. (2011). Academic Skills. 
Oxford: Spain