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  1. HACKER Definition & Meaning - Merriam-Webster

    The meaning of HACKER is one that hacks. How to use hacker in a sentence.

  2. Hacker - Wikipedia

    In computer enthusiast and hacker culture, the primary meaning is a complimentary description for a particularly brilliant programmer or technical expert. A large segment of the technical …

  3. HACKER | English meaning - Cambridge Dictionary

    HACKER definition: 1. someone who gets into other people's computer systems without permission in order to find out…. Learn more.

  4. What Is a Hacker? - Computer Hope

    Jun 1, 2025 · A hacker is a term that started being used in the 1960s and described a programmer or someone who hacked computer code. Later the term evolved into an individual …

  5. What Is a Hacker? - Cisco

    A hacker is a person who breaks into a computer system. The reasons for hacking can be many: installing malware, stealing or destroying data, disrupting service, and more.

  6. What is a hacker? | Definition from TechTarget

    Mar 31, 2025 · A hacker is an individual who uses computer, networking or other skills to overcome a technical problem. The term also refers to anyone who uses such abilities to gain …

  7. HACKER Definition & Meaning | Dictionary.com

    Hacker definition: a person or thing that hacks.. See examples of HACKER used in a sentence.

  8. Hacker | Definition, Types, & Word Origin | Britannica

    hacker, information technology professionals or enthusiasts who compromise (or “hack”) the security of computers.

  9. hacker noun - Definition, pictures, pronunciation and usage …

    Definition of hacker noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  10. What is a hacker? - GeeksforGeeks

    Jul 23, 2025 · What is a Hacker? A hacker is someone who does not have permission to break into computer systems or networks. It means that hackers can mess up your life by taking …