SmartThings Security

Do you know what role the hub’s unique serial number plays into the security of the system?

I assume it plays a role since a popular online retailer displays this disclaimer:

What you need to know – This product has a serial number that uniquely identifies the item. When your order ships, [online retailer] will scan the serial number and add it to the history of the order. Should the item go missing before it arrives, [online retailer] may register the serial number with loss and theft databases to prevent fraudulent use or resale of the item. There is no action required from you and the serial number will only be used to prevent fraudulent activity associated with the missing item.