How Do Secret Codes Work in Spying?

Secret codes are like magic messages that only certain people can read. Imagine if you and your friend had a special way of writing notes so no one else could understand them, that’s how spies used secret codes to send hidden messages during wars and missions. Sometimes they would write on paper with invisible ink, or use ciphers where each letter stood for another. It was like playing a game of hide-and-seek with information.