Offline authentication was included for reasons you state but banks and terminals are supposed to limit it to small transactions, i.e buying a cup of coffee. For larger ones you wait and retry for online transaction before you let the customer walk out with that shiny new 2K MBP.
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Offline authentication was included for reasons you state but banks and terminals are supposed to limit it to small transactions, i.e buying a cup of coffee. For larger ones you wait and retry for online transaction before you let the customer walk out with that shiny new 2K MBP.
I'm not disagreeing.. was only stating a reason why they might bypass the check.