Information gathering can be done in two broad categories of methods—technical and nontechnical methods. As the name suggests, the technical methods are reliant on computer-aided techniques of collecting information. There is, however, no assurance that a particular tool or piece of electronic equipment will obtain sufficient information about a target. Therefore, a mix of the following tools and devices might be used to gather information about targets. Social engineers will use multiple information-gathering tools/techniques and merge the information they get to build a profile for their targets.
Gathering information about targets
Technical information-gathering methods
There are many tools being developed today...