Greed, of course. If it becomes too big of a problem, each cable and device will be required to have a challenge-response Obscure Brand Inc. proprietary U9 chi

Greed, of course. If it becomes too big of a problem, each cable and device will be required to have a challenge-response Obscure Brand Inc. proprietary U9 chip burned with a valid secret key and serial number at the factory that must return a valid response for the link to be enabled.