Microsoft's latest Security Intelligence Report focuses on the expanding threat posed by bots and botnets. The report details that botnets are growing larger in size and becoming more sophisticated, with some networks now containing over one million infected machines. Microsoft also discusses new trends seen over the past year, such as the emergence of mobile botnets targeting smartphones. Additionally, the report provides statistics on cyberattacks by country and information on new botnet command and control techniques used by cybercriminals.