Hello,

Being a computer science graduate you might be having a good understanding of programming languages, which can be termed as heart of ethical hacking which provides a deep understanding of working in backend.

The basic requirement of becoming a good ethical hacker is a strong understanding of networking and its commands for both windows and kali linux.

If you have got a good understanding of it then go and login to Cybrary which provides free in this domain from basic to advance. After completing the training, join bug bounty program to get a practical knowledge on how it all works and make sense

Best of luck for your journey!!!