 LONDON--BUSINESS WIRE--Arqit Limited Arqit, a leader in quantum encryption technology, today announces that it has signed a contract with leading law firm Dentons London to co-develop a quantum safe, self-sovereign identity system SSI, which allows users to control their own identities and selectively grant access permissions to firms. The new product is called QuantumKeepTM. It transforms on boarding and compliance checking from a repetitive, burdensome, and time-consuming process t 