Microsoft releases Security Intelligence Report (SIR) - "The evolution of malware and the threat landscape - a 10-year review"

Figures (clockwise from top left): relative severity of vulnerabilities disclosed since 2002 across the entire industry; average number of CVEs per MSRC security bulletin since the first half of 2005; worms, trojan downloaders and droppers, and password stealers and monitoring tools categories since 2006

Download PDFs: http://www.microsoft.com/download/en/details.aspx?id=29046