Computers under Attack

 It is said that there are three types of virus that can cause problems for any users. A Trojan Horse is arranged to take credit card data or bank- secret word. A Spyware is disguised in a computer, it keeps information about the computer’s owner. A Spam is undesirable mail and hoax to get money from people (Philpot, 2011:47). 

Reference:  Philpot, S. (2011). “Computers under Attack.” Academic Skills. Oxford: Spain