Instant messaging spam

Instant messaging spam

Instant messaging spam makes use of instant messaging system.  less ubiquitous than its e-mail counterpart according to report from Ferris Research 500 million spam IMs  sent in 2003, twice  level of 2002. As instant messaging tends not be blocked by firewalls it is an especially useful channel for spammers.This is common on many instant messaging systems like Skype.
Newsgroup spams a type of spam wher targets are Usenet newsgroup. Spamming of Usenet newsgroups actually pre-date e-mail spam. Usenet convention defines spamming as excessive multiple posting, that is repeated posting of a message.The prevalence of Usenet spam led  the development of  Breidbart Index as an objective measure of  message's spamminess.