11. Worm Viruses, Deadliest Of All Of the three most common types of malware (malware is short for malicious software, i.e. designed to harm) - viruses, Trojans and worms - the latter is the most harmful because only worms can function without human intervention.
12. Trojan Horse Viruses, Not A Myth Most people are familiar with the legend of the Trojan horse. During the siege of Troy, the Greeks left a large wooden horse outside the gates, allegedly as a peace offering. The Trojans brought the horse inside the city walls only to discover it was full of Greek soldiers who quickly sacked the city.
13. Combating Viruses, Beyond The PC By now most users are aware of the need to implement antivirus software on individual systems. But a large percentage of the hardware and software used to provide something for those users to use resides outside them.
14. Virus Hoaxes, As Bad As The Real Thing? Computer viruses cause real damage to systems or lead to data theft. The consequences are lost time, broken programs and sometimes real money stolen.
15. Combating Spyware Spyware can be more than an annoyance. Poorly programmed spyware can interfere with other programs and can even cause system instability. Privacy issues are at stake as well.
16. Pop-ups Pop-ups are those annoying advertisements that - as the name says - pop up on your monitor as you surf the Internet. Their main purpose is to attract visitors to advertisers' web sites or to collect e-mail addresses.
17. Parental Control Software The Internet gives us the world at our fingertips. Unfortunately, sometimes those fingers belong to a child. While innocently surfing 'the net', children can be exposed to inappropriate material.
18. Data Backups - Why Bother? For many people, computers have become a daily necessity. We use them for work, for correspondence and for entertainment. Many of the files are important documents and losing them would cost us time and money.
19. What Is Spam? Almost anyone with a passing acquaintance with the Internet is familiar with spam. Just as junk mail is the demon of the Postal Service, spam is the scourge of e-mail.
20. Common Spam Scams Along with spam advertisements hawking prescription medicines, 'cheap' mortgage rates and online gambling sites, there are a number of common scams whose sole goal is to separate you from your money.