Microsoft Security Intelligence Report version eight (SIRv8) reveals that cybercrime continues to mature and adopt more traditional business techniques. “SIRv8 is the most comprehensive intelligence document that incorporates data from 500 million systems, providing insight into threat trends in 26 countries. It’s worth noting that all attacks aren’t created equally. Home users remain the most susceptible to infected malware & socially engineered threats, such as advertisements & personal assistance sites. Worms such as Win32 Conficker are still the “top threat to business,” using propagation methods that work well within internal networks. Spam messages associated with advance-fee fraud ( “419 scams”) and gambling increased significantly in 2H09, and we found that 90% of all botnet (those hacked networks) spam originates from just five botnets,” writes Microsoft.