Malware is a problem at this point in time whether surfing the net or receiving E-Mail
Malware is a portmanteau, a term combining "malicious" and "software" to describe a type of program designed to steal information from or cause damage to a computer. It includes things like spyware and programs, including pop-ups and even tracking cookies, which are used to monitor users' habits without permission. It also includes more sinister hazards, such as key loggers, Trojan horses, worms and viruses. In simpler terms, it is any software that is intended by the developer to cause harm or exploit people's computers or private records without consent.
The Threat Posed by Malware The threat posed by malicious software has expanded roughly in parallel with the number of people using the Internet around the world. The earliest well-known examples of malware, which appeared during the early to mid-1990s, were largely the result of experimentation and pranks by curious developers trying to expand their skills. Many of these caused little if any actual harm, and simply resulted in commanded actions such as displaying a humorous image on the victim's computer screen. This gradually gave way to efforts to exploit infected computers for annoying but relatively mundane purposes, such as distributing spam and other forms of advertising.