The word “hacking” has two definitions. The first definition refers to the hobby/profession of working with computers. The second definition refers to breaking into computer systems. While the first definition is older and is still used by many computer enthusiasts (who refer to cyber-criminals as “crackers”), the second definition is much more commonly used.
Penetration testing (also called pen testing) is the practice of testing a computer system, network or Web application to find vulnerabilities that an attacker could exploit. Kali Linux Cheat Sheet …