By which language we can become an hacker

Answer 1

Hacking is illegal, but you can do it for cyber security anyway.
C++ is a must.
Java is slightly option, not so recommended since you most likely isn't going to use it most of the time.
SQL for database injection
Javascript is also good for client-injections
JS/HTML for webpage control/Management (CSS is optional, but good to know too)
PHP is a must too since you want to send information to your PC(Like keylogger's information)

Answer 2

c++, Java, bit of python, javascript and sql for injection

~Kamil

Answer 3

Thanks

Answer 4

python is a must for cyber security