Do you know which OS is used by hackers, and cyber security experts, 

Firstly need to understand what is Linux

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Linux is an operating system just like Microsoft, MAC, and Android operating systems.

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Pro Linux users do anything with Linux Terminal Coding, create websites, downloading and etc.

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Linux have niche os for a specific user: Debian, Ubuntu, Kali, Mint, Arch, Manjaro, Redhat Distributions

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Debian is used for web hosting or website. Ubuntu is used for common purposes Just like MAC Book PC.

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Most Hackers, Pentester, Bug hunters, and Cyber Security Exper Use Kali Linux Operating System for Testing or Ethical Hacking.

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