If you believe what you hear in the media, there are an awful lot of viruses going around. No, I’m not talking about the make-you-sick kind of virus, though they get plenty of airtime, too. I’m talking about the kind of virus that enters via your internet connection rather than your nasal passages.
What the mainstream media often don’t tell you–at least, in most radio and television newscasts and in the crucial headlines and opening paragraphs of newspaper articles– is that many of these “viruses” are not viruses at all.
What Computer Viruses Really Are
The main reason the mainstream media always are in alarm over viruses is that they tend to call any malicious computer program a virus. In reality, there are at least eleven distinct types of malicious software, or malware, commonly affecting computers today. The most common of these are worms, Trojans, and spyware.
So, what’s the difference between computer viruses and the other types of malware? The difference is that computer viruses are just about the only ones that regularly shut down computers and cause other obvious damage. The most common of...