What Actually Happens in the 2–3 Seconds of a Card Payment
A card payment feels instantaneous. The system behind it is not.
2 pages
Arqc
Why EMV Chip Cards Resist Cloning: The ARQC Mechanism Explained
Every chip card generates a unique cryptographic proof each time you tap or insert it. That proof is why cloning a chip card’s transaction capability is effectively impossible — and why the …