Dans Ta Meilleure Forme

Description

You are in charge of the cybersecurity of an embassy, and you are convinced that a spy is extracting information despite all security measures (no mobile phones, strict controls on equipment entering and leaving the building, etc.). After exploring all options, you are left with only one way out: the old shared analog landline. While scrutinizing the recording tapes, you indeed come across something strange… Can you decipher the exfiltrated message?