Reconnaissance objectives
Target background: What is the focus of the target's business?
Target's associates: Who are the business partners, vendors, and customers?
Target's investment in security: Are security policies advertised? What is the potential investment security, and user security awareness?
Target's business and security policies: How does the business operate? Where are the potential weaknesses in operation?
Target's people: What type of people work there? How can they become your asset for the attack?
Define targets: What are the lowest hanging fruit targets? What should be avoided?
Target's network: How do the people and devices communicate on the network?
Target's defenses: What type of security is in place? Where is it located?
Target's technologies: What technologies are used for e-mail, network traffic, storing information, authentication, and so on? Are they vulnerable?
Kali Linux contains an extensive catalog of tools titled Information Gathering specified for Reconnaissance...