Chinese leader says ‘check if there is a backdoor’ in reply to Lee Jae Myung’s quip about security of Xiaomi devices Chinese leader says ‘check if there is a backdoor’ in reply to Lee Jae Myung’s quip about security of Xiaomi devices It would take someone with nerves of steel to joke about the security of Chinese smartphones in front of Xi Jinping . Step forward the South Korean president, Lee Jae Myung , who, after being given a pair of smartphones by the Chinese leader before their state