Clark says that essentially nobody looks at the back of his credit card (for the signature).
I have seen the cashiers at Costco flip the card and compare my image with my face, although they do it nonchalantly. SO Clark, watch for this and see if this happens at your COSTCO or other warehouse stores that have a photo on them.
A couple decades ago we had to show a photo ID to travel between Hawaiian Islands. The screener/agents accepted the COSTCO card, I guess figuring that COSTCO already knew who we were
Signatures used to be the norm for validation. Yet when I searched Georgia records a few decades ago, I found my mortgage documents online including images of my signature. It was interesting that the only signature blocked out was the clerks. Obviously that was to avoid people using that clerks signature to add to another document. My signature was not treated the same.
You fingerprint could be duplicated. One way could be to scan a fingerprint or finger and use a 3-D printer to create a proper working item.
DNA. It is possible to have similar DNA (like twins). It is also tryue that some small population are Chimeras ( Chimeras are organisms that have two different sets of DNA, or the genetic material that contains instructions for the development and functioning of an organism, present in their bodies. Most organisms only have one set of DNA, which is present and identical in every cell throughout that organism’s body.) Even a bone marrow transplant can cause Chimera DNA.
As long as we come up with security systems, there will be a way to thwart them.
