Security Terminologies
Security Terminologies – Key Concepts in Cybersecurity Explained
Understanding security terminologies is the first step toward mastering the world of cybersecurity. This comprehensive guide breaks down essential terms, acronyms, and jargon commonly used in ethical hacking, penetration testing, network security, malware analysis, and more. Whether you’re a beginner, a student preparing for certifications, or a professional brushing up on concepts, our glossary of security terminologies will help you confidently navigate technical documentation, interviews, and real-world scenarios.
Stay informed with up-to-date definitions and examples that simplify even the most complex cybersecurity concepts. Learn the language of the industry and start speaking like a pro!
Understand essential security terminologies critical to cybersecurity and information security. This page breaks down important terms like malware, firewall, encryption, phishing, vulnerability, penetration testing, zero-day, and more in simple, clear language. Perfect for beginners, students, and anyone preparing for cybersecurity certifications or interviews.
Click on the Security terminology that you want to learn more
Verifying the identity of a user, system, or entity.
Software designed to detect and remove malicious software (malware) from a computer.
A hidden method of bypassing normal authentication or encryption in a computer system.
A network of compromised computers controlled by a single entity for malicious purposes.
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A method of trying all possible combinations to crack a password or encryption key.
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Overwhelming a system with traffic from multiple sources to make it unavailable.
Unauthorized access, acquisition, or disclosure of sensitive information.
Unauthorized access, acquisition, or disclosure of sensitive information.
It is a security barrier that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Individuals who may perform hacking activities without malicious intent but without proper authorization.
A system designed to attract and detect attackers by simulating vulnerabilities.
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Malicious software that records keystrokes on a computer.
Intercepting and examining data packets on a network.
A fraudulent attempt to obtain sensitive information by pretending to be a trustworthy entity.
A fraudulent attempt to obtain sensitive information by pretending to be a trustworthy entity.
Phishing attacks conducted through SMS or text messages.
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Phishing attacks conducted through SMS or text messages.
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Malware disguised as legitimate software to deceive users.
Establishes a secure connection over the internet to protect data in transit.
Establishes a secure connection over the internet to protect data in transit.
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A self-replicating type of malware that spreads across a network without human intervention.
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Ethical hackers who use their skills to identify and fix security vulnerabilities.
Ethical hackers who use their skills to identify and fix security vulnerabilities.
Frequently Asked Questions (FAQ)
security terminologies are the key terms, acronyms, and phrases commonly used in the field of information security. Understanding them helps you communicate effectively, comprehend technical documents, and navigate cybersecurity tools and concepts.
Knowing cybersecurity terms is essential for anyone in the field—from beginners to professionals—because it builds a strong foundation for learning more advanced topics, understanding documentation, passing certification exams, and working on real-world security tasks.
Yes! This glossary is designed to be beginner-friendly. Whether you’re a student, aspiring ethical hacker, or preparing for certifications like CEH, CompTIA Security+, or OSCP, these terms will help simplify complex topics.
Some core terms stay the same, but the cybersecurity landscape is constantly evolving. New threats, technologies, and tools introduce new terminologies regularly. That’s why we keep our glossary updated.
We may provide a downloadable PDF version of the terminology guide soon. Stay tuned or subscribe to our newsletter for updates and free resources.
Understanding these terms helps when working with tools, writing reports, reading vulnerability disclosures, preparing for interviews, or participating in CTFs and bug bounty programs.
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