Today I learned the principle of the monoalphabetic cipher. It's simple to decrypt a ciphertext written all in the same language (english for example) because I can use the syntactic properties as well as letters' frequency. What about writing a message using different languages in the same text?
Il gatto è salito sull'albero. I don't know how to bring it down!
In this way I don't have any clues on how to decrypt the message, right? The only information that could help me should be the knowledge of which languages are in use.
Thank you very much for your time.