What is Spam?
Spam is the commonly used term for unsolicited commercial e-mail send in bulk. The most common form of spam is e-mail spam. The main difference between spam and solicited mail, or newsletter, is that you never signed up to receive it anywhere. Other forms of spam are instant messaging (IM) spam, search engine spam, blog spam and mobile phone messaging spam.
What does spam do?
Spam fills your inbox with useless e-mails preventing you from receiving important mails. A large percentage of spam contains ads for pornographic Web sites or other such places that can be unacceptable viewing for many, especially children.
Opening a spam mail could immediately infect your pc with spyware or a worm without your knowledge. Another problem these days are spambots, which are a major producer of e-mail spam. Some spammers create various e-mail viruses that transforms an unprotected PC into a spambot that will inform the spammer of its existence, and the spammer will command it to send a low volume of spam. This allows spammers to send high volumes of spam without being caught by their ISPs or being tracked down by anti-spammers as the low volume makes it hard to detect.
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