Hacker
A hacker is a person who uses technical knowledge to access, analyze, modify, or exploit computer systems for authorized or unauthorized purposes.
“A person or organization who is actively involved in security attacks, usually with malicious intent.”
(Definition reproduced from the ISTQB Glossary. Copyright belongs to ISTQB.)
View the complete ISTQB GlossaryWhat is Hacker?
The term "hacker" is neutral and can refer to individuals who improve security, conduct research, or perform malicious activities depending on their intent and authorization.
Different motivations: Hackers may be ethical, malicious, or security researchers.
Technical expertise: Hackers understand systems, networks, and software deeply.
Testing relevance: Understanding hacker techniques helps improve security testing.
Real World Example
A regulated product team is preparing a release where Hacker appears in reviews, test design conversations, or defect triage rather than as an isolated glossary word.
The risk is that the team treats Hacker as interchangeable with nearby ISTQB terms. That makes test scope blurry and can lead to weak evidence for the release decision.
The tester anchors the discussion in the official definition, asks where the concept appears in the product, and designs examples that show the difference between Hacker and similar ideas.
The page becomes useful in practice because Hacker is connected to a specific testing decision, not memorized as a detached definition.
Practice Questions
Question 1
Which statement BEST describes Hacker in the context of ISTQB terminology?
Question 2
A tester needs to explain Hacker to a non‑technical stakeholder. Which approach is MOST appropriate?
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