Based on network flow traffic, Nigel traced the origin of the IP address that he had identified to the suspected attacker. Time to see who you are! he thought. Time to see who you are! He performed a scan of the source system. It was running an operating system (OS) that he was familiar with: an open source version of Ninex, a popular hacker OS. The problem was that more scans would be necessary to determine which flavor of software distribution the intruder was using. The more he knew about it, the more effective he would be at taking down its defenses as well as combating it. He opened his Datasploit program. He was in the habit of updating it regularly so it should have all the latest vulnerabilities and zero-day exploits. The zero-day exploits were the most valuable: they contained vu

