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Active vs Passive Scanning

In this video, I break down two foundational ideas in cybersecurity: active scanning and passive scanning. Scanning is the process of gathering information about systems—what hosts exist, what ports are open, what services are running, and how a network behaves. The big difference is interaction: active scanning sends traffic to a target, while passive scanning learns by observing existing traffic or public data. Both are used by defenders for inventory, detection, and risk reduction—and both are used by threat actors for reconnaissance. We’ll also connect these ideas to TTPs—Tactics, Techniques, and Procedures—and mention common tools you’ll hear about in the real world. Quick reminder: scanning should only be done with authorization and within scope. ===== Video Script https://adventuresinsecurity.com/scri...