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Kali Linux Intrusion and Exploitation Cookbook by Ishan Girdhar, Dhruv Shah

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What is penetration testing?

Penetration testing is a security-oriented strategic probing of the system from internal or external with little or no prior knowledge of the system itself, to seek out vulnerabilities that an attacker could exploit. When we talk about penetration testing, it is not restricted to a standalone machine; it can be any combination of web or network application, host or networks, and on cloud or in premises. In other words, penetration testing is the activity of assessing all the components of IT infrastructure, including but not limited to operating systems, network communication protocols, applications, network devices, IoT connected devices, physical security, and human psychology, using the exact same target approach ...

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