The Old Warthog writes: "An explanation of exploit kits with particular reference to Blackhole. Exploit kits are automated malware-distribution tools to be used by criminals. These toolkits are designed to exploit client-side vulnerabilities in software in order to infect computers with malware. Typically, exploits target browsers and software running within the browser such as Java Runtime Environment, Adobe Reader and Adobe Flash Player. The kits exploit these vulnerabilities in a drive-by download. This week for example, the NBC website was infected with the RedKit exploit kit, downloading the Citadel malware onto the computers loading the NBC homepage as well as the Jay Leno page."