The Microsoft Security Intelligence Report (SIR) Volume 8 covers July 2009 through December 2009, 248 pages of in-depth information addressing such topics as software vulnerability disclosures, exploits and malware.
Key findings and detailed analysis for 26 countries around the globe: http://www.microsoft.com/security/about/sir.aspx
http://blogs.technet.com/mmpc/archive/2010/04/26/announcing-microsoft-security-intelligence-report-volume-8.aspx
