You may be familiar with image-based or audio-based steganography, the art of hiding messages or code inside of pictures, but that's not the only way to conceal secret communications. With zero-width characters, we can use text-based steganography to stash hidden information inside of plain text, and we can even figure out who's leaking documents online. Image- and audio-based steganography has been covered severaltimeson Null Byte, which involves changing the least significant digit of indiv...
