Toshiba is working on an unbreakable encryption solution that would create a one-time encryption key. The key for Toshibas quantum-cryptography system will be delivered as photons through a custom-made fiber optic cable not connected to the Internet. The technology is just starting the testing phases and if successful would not be deployed for another decade. A component of security that is often overlooked which is critical to adoption of new security technology is usability and actual adoption of the technology.”]
Source: https://informationsecuritybuzz.com/articles/security-expert-comments-on-unbreakable-encryption/