Choudhury, SubhajitDey, BiswanathKumar, S.2010-05-212010-05-212005-11-1081-902079-2-Xhttp://hdl.handle.net/1944/1415The paper introduces with a brief history of spam. Defines the term spam as Electronic junk mail or junk newsgroup postings. The trick of spam operators. Enlightens with some tips of Spam handling. It also describes various tools of spam and a through investigation of spam filtering, its importance, and available software that can help for spam filtering and information security in an information system. Lastly, the importance of anti-spam filtering to libraries and information centres have been discussed. Concludes with suggestion for using anti-spam software.enDigital LibraryNetwork SecurityArticle