Which OSINT tool allows customization using modules?

• A. Maltego
• B. Shodan
• C. Recon-ng
• D. theHarvester

Answer: (C)

Modularity and extensibility let you tailor OSINT work by adding or swapping components that perform specific data-gathering tasks. Recon-ng is designed as a reconnaissance framework where everything is built around modules you can install, configure, and run from a consistent interface. You can develop your own modules in Python, add new data sources, and chain modules together to automate targeted collection for different targets. This plug-in style makes customization through modules its defining strength. The other tools serve valuable roles—Maltego uses transforms to pull in data and can be extended, but its emphasis is on graph-based data linking rather than a focused modular framework; Shodan is a search engine for connected devices with built-in data and limited extension; theHarvester is a straightforward data-gathering tool with less focus on a modular ecosystem.