As a cybersecurity analyst conducting passive reconnaissance, you aim to gather information without interacting directly with the target system. Which technique is least likely to assist in this process?
A.
Using a tool like Nmap to scan the organization’s public IP range
B.
Inspecting the WHOIS database for domain registration details
C.
Using search engines and public data sources
D.
Monitoring publicly available social media and professional profiles
CEH defines passive reconnaissance as collecting information without directly engaging the target.
Option A is incorrect for passive reconnaissance because Nmap scanning actively probes systems, generating detectable traffic.
Options B, C, and D rely on publicly available information and are standard passive techniques.
CEH classifies Nmap scanning as active footprinting.
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