Botnets – networks of machines infected with malicious software – are widely regarded as a critical security threat. Measures that directly address the end users who own the infected machines are useful, but have proven insufficient to reduce the overall problem. Recent studies have shifted...

Malicious software, or malware for short, has become a critical security threat to all who rely on the Internet for their daily business, whether they are large organisations or home users. While originating in criminal behaviour, the magnitude and impact of the malware threat are also...