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The European Union’s antitrust chief says she’s taken the unusual step of scrutinising Facebook’s planned cryptocurrency because of the risk that libra will lead to the creation of a new, entirely separate economy.

After four years in the planning, the post office has unveiled Trust Centre, a digital authentication service that provides reassurance of legitimacy in digital transactions and communications. Trust Centre serves as a certificate authority (CA) that issues digital certificates and holds the public key infrastructure

Imagine opening a computer and finding that the manufacturer hasn’t bothered to provide multicoloured wires in the tangle of cords. Now multiply that tangle of grey wires by 100m, unplug the power cord — and then try to follow the signals from each keystroke through those wires to an answer on the computer screen