Re:New flaw in Intel chips lets attackers slip their own dat...
by ptx on Tuesday March 10, 2020 @04:01PM
(#22539045)
For the user, there is no real point to such a separation. If the system is full of rootkits and malware, the credit card can be hijacked through for the browser, for example. You don't need to get at the actual credit card processing if you can control all inputs and outputs.
E.g. you might want your credit card processing in an enclave even if it's your own card, simply to hide it from any rootkits or malware you may have installed.