Arqit Quantum Inc., a quantum encryption technology company, provides quantum encryption Platform-as-a-Service that makes the communications links of various networked device secure against current and future forms of attack. Its product, QuantumCloud, enables any device to download a lightweight software agent of less than 200 lines of code, which can create keys in partnership with any other device. The company was incorporated in 2017 and is based in London, the United Kingdom.