Quick Answer
The answer is Maltego, the best passive reconnaissance tool for discovering employee names and email addresses from public sources. This is because Maltego excels at open-source intelligence (OSINT) by using transforms to query social media, search engines, and DNS records, automatically mapping relationships between domains, people, and email addresses without ever touching the target’s systems. On the CompTIA PenTest+ PT0-002 exam, this question tests your ability to distinguish passive from active reconnaissance—a common trap is confusing Maltego with active tools like Nmap or theHarvester, but Maltego’s strength lies in its graphical link analysis and breadth of public data sources. For a quick memory tip, think “Maltego maps people from public places”—its transforms turn scattered OSINT into a visual web of employee connections, making it the go-to for passive email and employee discovery.
This PT0-002 practice question tests your understanding of information gathering and vulnerability scanning. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A penetration tester needs to gather information about a target organization's employees and email addresses from public sources. Which passive reconnaissance tool is BEST suited for this task?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Nikto
Why wrong: Nikto is an active web server scanner.
Nmap
Why wrong: Nmap is for active network discovery.
Wireshark
Why wrong: Wireshark captures live traffic, which is active in the sense of requiring network access.
Maltego
Maltego excels at OSINT gathering, including email addresses and employee information.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Maltego
Maltego is a passive reconnaissance tool that excels at gathering information from public sources, including employee names, email addresses, and organizational relationships, by querying open-source intelligence (OSINT) data such as social media, search engines, and DNS records. It uses transforms to automate data collection and link analysis, making it ideal for this task without directly interacting with the target's systems.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Nikto
Why it's wrong here
Nikto is an active web server scanner.
Nmap
Why it's wrong here
Nmap is for active network discovery.
Wireshark
Why it's wrong here
Wireshark captures live traffic, which is active in the sense of requiring network access.
Maltego
Why this is correct
Maltego excels at OSINT gathering, including email addresses and employee information.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse active scanning tools (like Nikto or Nmap) with passive reconnaissance, failing to recognize that Maltego is specifically designed for OSINT gathering from public sources without sending probes to the target.
Detailed technical explanation
Maltego leverages transforms that query public APIs (e.g., Shodan, Have I Been Pwned, social media platforms) and DNS records (e.g., SPF, MX) to map relationships between entities like email addresses, domains, and people. In a real-world engagement, a tester might use Maltego to pivot from a discovered email address to find associated social media profiles, revealing additional employee names and organizational structure without any direct interaction with the target's network.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Information Gathering and Vulnerability Scanning — This question tests Information Gathering and Vulnerability Scanning — Read the scenario before looking for a memorised answer..
The correct answer is: Maltego — Maltego is a passive reconnaissance tool that excels at gathering information from public sources, including employee names, email addresses, and organizational relationships, by querying open-source intelligence (OSINT) data such as social media, search engines, and DNS records. It uses transforms to automate data collection and link analysis, making it ideal for this task without directly interacting with the target's systems.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This PT0-002 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PT0-002 exam.
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