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I thank the hon. Lady for those good, focused questions. The core of the network is the nerve centre for our national telecommunications network. It is for the most sensitive functions, relating to things like protecting sensitive data, and that is how we can identify very clearly the specific requirements needed to protect them. The access network—the periphery or the edge, as it is called—is the infrastructure connecting customer devices and equipment to mobile phone masts, transport and transmission networks. There is a clear distinction. She is right to say that technology is fluid and this may change over time, but we are very clear on the functions that we have identified and the way that we are going to protect them.