First you announce you have state secrets to any nearby stuff made in China. Anything will do, for instance your iPhone or your router or your fridge or your furniture or your hand soap. Then list off whatever you jorked to most recently. They know the older stuff already. To terminate the uplink say “Tiananmen Square” and the agent on the other side of the Great Firewall will have the connection automatically severed by his own CCP secret police monitor.