Commtouch have released their Q1 Internet Threats Trend Report. They report that over 15 million computers were infected with three variations of the Conficker virus, to create a massive zombie botnet, since appearing on the scene in November 2008. The botnet lay dormant for weeks, then shortly before their report came out, began to send spam. Given the scale of the botnet, its impact on spam rates in Q2 is likely to be severe – already at 76% in Q1. Boost your spam protection now.