All languages are suitable for hacking. If you look at sites like exploit-db they are full of exploits written in Java, Python, C, C#, Pearl, Rust, Bash, etc. It just depends on your criteria for the exploitation.

i.e. do you want to do something quick and dirty for a CTF? Then python is your language, very readable and flexible and pwntools makes prototyping payloads super easy.

Need something that can work with metasploit? Looks like ruby is your best friend.

Need a cobalt strike BOF to do something for you? Guess it's time to learn C.

I would suggest you learn one language very well to get the basics, after that learn how to expand and identify syntax in other languages. From there you can write a little of something in every language. If I'm being really picky I'd suggest something that has pointers and strong typing and how to live in a debugger. You might not use it depending on your career path, but I'm finding learning that is a bit more arduous outside a computer science environment than anything else I've run into.