A person who accesses a network by walking through an unlocked door is known as

Question

BlackTom AI · Accepted Answer

A hacker is someone who bypasses security controls—technical or physical—to gain access to systems or networks, so option b is correct.

1) Relevant knowledge points and concepts
- Hacker: an individual who exploits weaknesses (technical, physical, procedural) to gain unauthorized access to systems or networks. This includes software attacks and physical intrusion (e.g., tailgating, entering through an unlocked door).
- Unauthorised user: a broader label for anyone using a system without permission; it describes status but not the actor’s actions or intent.
- Virus and worm: types of malicious software (malware), not people.

2) Step-by-step reasoning
- The question describes a person physically entering via an unlocked door to access a network. That is an action taken by an individual to circumvent physical security.
- The act of deliberately exploiting a physical weakness to reach network resources falls under the general behavior of a hacker (physical intrusion is one form of hacking).
- Therefore the correct classification identifies the actor who bypassed security controls: a hacker.

3) Calculations
- Not applicable (no numerical work required).

4) Why the correct answer is correct
- “Hacker” specifically denotes an actor who finds and exploits vulnerabilities, including physical vulnerabilities like an unlocked door. The scenario describes exploitation of a security lapse to gain access, matching the hacker definition.

5) Why the other options are incorrect
- a. unauthorised user: technically true in status but too generic; it doesn’t capture the active exploitation described. The question asks for the type of person doing the accessing, which is commonly called a hacker.
- c. virus and d. worm: these are software programs that propagate and infect systems, not people, so they cannot describe a person entering a building.

6) Conclusion
- The best, most specific label for a person who accesses a network by walking through an unlocked door is “hacker,” confirming answer b.

A person who accesses a network by walking through an unlocked door is known as单项选择题

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