Let us give auto cash its own web suffix

A domain suffix is the last part of a domain name and is often referred to as a "top-level domain" or TLD. Popular domain suffixes include ".com," ".net," and ".org," but there are dozens of domain suffixes approved by ICANN. Each domain suffix is intended to define the type of website represented by the domain name.

Normally we access a site by looking up the numerical equivalent of its web name; the URL is converted to an IP number.

In auto traded cash, there are keys kept by secure elements unknown to any human, according to sandbox rules and Intel SGX hardware based protection.  Thus, all URL lookups in auto cash will be encrypted with the secret key, there will be no denial of service except by counterfeit of the secure element, a finite and correctable problem.

If we incorporate end to end security, then the routers themselves are part of the ringed fence, and they can work with encrypted IP numbers, making all exchanges nearly impervious to DOS. Routers thus obey the Intel SGX standard.

Any hacker trying to penetrate the WalMart discount point exchange would have to buy a ton of stuff from Walmart, in small quantities.

Intel and WalMart owe me an advertisement check.