According to my opinion hacking is not a crime.It is very necessary to know one of the machine language before hacking.Because without machine language we can’t command our system.So first we have to be a good programmer.Basically c language is known as the mother of all other programming languages.We have to use Linux operating system in the place of Windows.Because all the hacking tricks were developed in Linux.Kali Linux is a very important part in hacking.So we have to know at least one programming language before hacking.In this way we can be a good hacker.