We don't know that yet, they could just hand out keys with a PKI handled by a third party, once the device and manufacturing process are validated. But: it wil

We don't know that yet, they could just hand out keys with a PKI handled by a third party, once the device and manufacturing process are validated. But: it will cost money, and someone will have to foot the bill. USB is one of the most open and universal standards out there, and it is sad that is has come to this, since it could be needed for safety (the amount of power it manages is no longer negligible).