Geektastic:Oblivian:Control over the issuing certificate/key and ability to revoke it comes to mind. (and where the data about you is stored)
International ones follow EU standard. Our header has its own NZCP:
I'm sure that will be helpful when international tourism resumes... All businesses equipped with a reader that won't read tourist codes.
Which tourist codes are you expecting them to read? Australia? EU? New York? UAE? Qatar?California?
They all use different systems and there is zero standardisation. There is no universal system. If you travel to some countries they will verify you manually or in others, like France or Switzerland, you apply for the domestic passport and pay for the privilege.


