According to M86 Security the security company, which published its new H1-2011 (January-June 2011) report, spam volumes have dropped tremendously from 2010 levels, as per Macworld.co.uk dated July 19, 2011.
Confirming this decline and at the reduced volume since then, M86 Security's latest report says that all other reliable security firms have been stating the same regarding spam volumes following the shutdown of Spammit.com the host for pharmaceutical spam, during September 2010.
Moreover, the SVI (Spam Volume Index) of M86 Security is currently 2000-or-so, approximately 50% of the value during the majority of 2010, which was 4,000-6,000. This suggests a favorable development due to help from law enforcement, which interrupted many major botnets, particularly Bredolab, Mega-D and Rustock.
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