Summary 93 of open source tools available for your use. Finally, we walked through a case study showing how to use what we've learned in a real-world scenario. Now it's your turn. Your challenge is to pick an organization and perform reconnaissance on it. Since this is a non-intrusive information gathering exercise, you can choose any organization that interests you. Your goal should be to find and assemble documentation with the following information: A list of domain names associated with the target. A list of other organizations which can be linked to the target. A list of host names for servers owned by or associated with the target. A list of IP addresses for as many hosts as possible associated with the target. An organizational chart with names, email addresses, contact information, and any personal details you can find for people related to the organization. A subset of this information which has been verified as correct and strongly associated with the target organization. This pile of information is what you need to move forward into the next phases of penetration testing. Remember, in the early phases of reconnaissance, you should collect as much data as possible whether it is guaranteed to be relevant or not. Then