SlackBuildsOrg/business/maltego

Maltego is proprietary software used for open-source intelligence and
forensics, developed by Paterva. Maltego focuses on providing a library of
transforms for discovery of data from open sources, and visualizing that
information in a graph format, suitable for link analysis and data mining.

It is used by security researchers and private investigators.

Note: You need to request a free license to use this software.