Why is double wrapping used when transmitting classified materials?

Double wrapping is used when transmitting classified materials to enhance security and ensure the protection of sensitive information. The outer layer serves as an additional barrier against unauthorized access, while the inner layer provides direct safeguarding of the classified content. This method reduces the risk of exposure during transit, ensuring that even if the outer layer is compromised, the classified information remains protected. Additionally, it helps to prevent accidental disclosure and maintains the integrity of the materials being transmitted.