Recently, questions were raised around UK complacency regarding cyber-security. Australia and New Zealand have refused to allow the Chinese firm Huawei to supply mobile networks with 5G equipment, saying it posed ‘significant security risks’ - a polite way of saying that Beijing might use 5G to disrupt communications in a future dispute. Canada recently arrested the Huawei founder’s daughter. America wants her extradited, stating that China is aggressively engaged in undermining US national security interests. The UK could be the only country allowing Huawei to play a key role in delivering the data on which everything from self-driving cars to smart city sensors will rely. Many believe that if Huawei is banned, China might refuse to do business with us in other fields post-Brexit. See also world article 2, and