Spammers Switch to Compromised Accounts to Reduce Reliance on Botnets, Says Commtouch Report

Spammers today favor compromised accounts for sending spam, gradually shifting distribution away from botnets, Commtouch reported today in its quarterly Internet Threats Trend Report, which covers Web threats, phishing, malware, and spam. The changed tactic has emerged as spam levels dropped dramatically, following several high-profile botnet takedowns.