Let’s focus for a moment on Blackhole, the world’s most popular and notorious malware exploit kit. Barring a takedown by law enforcement, we are likely to be battling it for years to come. So it’s worth making sure you’re up to speed. Exploit kits like Blackhole are pre-packaged software tools available on the malware black market. They identify and make use of vulnerabilities in software running on your computer to pull off a drive-by download. The result: the computer silently downloads and runs malware, without producing any of the warnings or dialogs you would usually expect.