What you'll learn

Public data exposes far more information than most organizations expect. In this course, Open-Source Intelligence (OSINT) with theHarvester, you’ll learn how security professionals conduct passive reconnaissance using only public sources. You’ll start by collecting email addresses and subdomains associated with the target domain. You’ll then expand your collection using multiple search engines and data sources. Finally, you’ll filter and analyze the results to identify findings useful to a security team. When you’re finished with this course, you’ll understand how OSINT supports real-world reconnaissance without alerting a target.