This info will be helpful for CTF competitions.
This guide will teach beginners how to use two popular steganography tools in Kali Linux – Steghide and StegoSuite. You’ll learn how to hide and extract secret data with these tools. Steganography is relevant today for securely transmitting information over monitored networks.
https://www.geeksforgeeks.org/how-to-use-steghide-and-stegosuite-steganography-tools-in-kali-linux/