QKD distributes, entirely securely, keying material used for quantum enhanced encryption keys. However, computers cannot access this keying material without expensive quantum hardware and networks of optical fibre extending to every [Type text]Page 2 endpoint. There is also the restriction of distance covered by the optical cabling. SDS can distribute quantum derived keying material over non-secure networks (including satellite) without any loss of security, and without the disadvantages of cost, time and distance. The infeasibility of scaling QKD limits its usefulness to grow the Quantum Technology (QT) sector. However, SDS has the same level of security without the disadvantages of QKD, and as such, offers a way to grow the QT industry by increasing the use of QRNG by classical computers.