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2. Symantec: Love Letter Worm (accessed October 2005), http://securityresponse.symantec.com/avcenter/venc/data/vbs.loveletter.a.html
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4. Lemos, R.: Counting the cost of Slammer (accessed 11 October 2005), http://news.com.com/2102-1001_3-982955.html?tag=st.util.print
5. SpamAssassin: The Apache SpamAssassin Project, http://spamassassin.apache.org/