Mastering Steganography: How to Hide Data in Audio Files 🎧

What we will do is known as steganography, the practice of hiding information within another digital medium (audio, video, or graphic files

For instance, if I wanted to send someone else a secret message, I could place the message within a picture, audio, or video file and send it via email or allow them to download the file from my website. With the proper key and algorithm, they—and only they—could read the secret message. Everyone else would only see the innocuous picture or hear the audio file.

Espionage and terrorist organizations have been using these techniques for many years (reportedly, Al Qaeda used these techniques to hide messages on their website to their followers in the 1990s and 2000s).
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MUSIC-CMC$ Conor Maynard - Understand Me (Official Song)