Toshiba Corporation, Tohoku University Tohoku Medical Megabank Organization (ToMMo) and Tohoku University Hospital have demonstrated that quantum cryptographic communications technology can provide genomic medicine with a safe, completely secure data management environment. This was achieved by (1) developing a system which applies quantum cryptographic communications technology to clinical sequencing, and (2) using that system to safely transmit cancer genome analysis data (exome sequence data), via online expert panel attended by physicians and other experts to analyze the sequenced data (Figure 1).