RED Image Steganography | picoCTF 2025 Walkthrough & Explanation

In this video, I walk through "RED" image steganography challenge from picoCTF 2025, explaining the vulnerability and how to retrieve the flag. 📌 Useful Links: PicoCTF: https://picoctf.org/ zsteg: https://github.com/zed-0xff/zsteg 🔔 Don't forget to like, subscribe, and comment if you found this helpful! Timestamps: 00:00 Intro 00:18 Basic Inspection 00:39 Steganography Explanation 00:55 zsteg command 01:34 LSB (Least Significant Bit) 02:00 Solution (Base64 command)