The Microsoft Security Intelligence Report is the most comprehensive threat intelligence report in the industry. It provides data and insights on malware, exploits and vulnerabilities based on data from more than a billion systems worldwide and some of the busiest online services. It also includes actionable guidance to help IT Professionals manage risk. The latest report, Volume 17, focuses on the first half of 2014, with trend data for the last several quarters.
Where you are a PC user or not the insight here are great to read about
You can download the report HERE