Ravi Sir's Cyber Security Cards › Comparison Cards
Passive vs Active Recon
Comparison card: Passive vs Active Recon. Easy English, with a real example. Scan the QR for the full lesson.
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What this card says
What each one is
Passive recon: gathering info without touching the target, like public records.
Active recon: sending traffic to the target, like a port scan.
How they differ
Passive is quiet and leaves no trace.
Active is louder and can be logged or blocked.
Example
Passive: reading a company's public DNS and website.
Active: running nmap against its server, with permission.
Use when
Start passive to stay quiet, then do active only on systems you may test.
Learn more in the lesson: 19.1 Passive vs Active Recon