Which tool is used for link analysis and graph-based investigations?

• A. Gephi
• B. Cytoscape
• C. Pajek
• D. Maltego

Answer: (D)

Link analysis and graph-based investigations rely on a tool that can automatically gather data from many sources and display the relationships between entities in an easy-to-navigate graph. Maltego excels here because it combines data collection (via transforms from numerous sources) with an interactive graph view. You can start with an entity like a domain or person and reveal related items—domains, IPs, emails, social profiles, infrastructure—and see how they all connect, expanding the graph to uncover networks you might miss in plain lists. This integrated approach makes it ideal for mapping connections in investigations, threat actor profiling, or OSINT workflows. Other tools focus more on general graph visualization or specialized domains (for example, Gephi is general graph visualization, Cytoscape targets biological networks, and Pajek is a general-purpose network analysis tool), and they don’t offer the same built-in data-gathering and investigative workflow features that Maltego provides.