Had it been carried out as proposed, the rule would have required the sender of any transaction between unhosted wallets to gather know-your-customer knowledge from the receiver. An analogous proposal within the U.S. obtained backlash because of issues about whether or not it will even be attainable for some entities, like sensible contracts with their very own wallets, to conform, in addition to whether or not the info could be protected if any random particular person needed to retailer it.