While the U.S. is betting all its quantum security chips on post-quantum cryptography, i.e. mathematically-based algorithms scientists and cryptographers hope will resist a future quantum computer assault—scientists, companies, and officials in Europe are investing in a technology that uses quantum science itself to secure data and networks, now and for decades into the future.
Quantum Xchange is mentioned in the story as an American vendor who uses QKD to provide point-to-multipoint transmissions for financial markets on Wall Street with back-office operations in New Jersey.
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