... at the ITU Cybersecurity Forum in Brisbane are gratefully acknowledged. Their feedback made this a much more coherent and readable report This ITU Study on the Financial Aspects of Network Security: ... 2008, the ranking of the top 10 countries identified as sources of spam remained the same.34 The list of the 10 worst ISPs was less stable. Nonetheless, eight of 10 ISPs remained in the top, ... with the hosting website to instruct the bots in the botnet to automatically click on the advertisements, generating false “hits.” This process can be further enhanced if the botnet hijacks the...