Much like learning how to do a backflip or training to become a firefighter, you can’t just practice hacking anywhere — you need a safe and controlled setting, otherwise you could cause harm to yourself and others. Ethical hacking is when a programmer has permission to use their technical skills to intentionally break into computer systems and access sensitive data to find common …

 https://www.codecademy.com/resources/blog/how-to-practice-ethical-hacking-legally