The central bank of Denmark, Nationalbanken, today announced its new offline payment system which means Danes will be able to pay digitally at the store — even when the internet is down.
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@Jurkis Note that this is on the payment system side, rather than specific card. So any card will work.
Not any card. Danish cards. Probably mostly a regulatory thing: Danish banks consent to the risk of 7 days of outstanding payments on debit cards, but foreign banks do not. -
Not any card. Danish cards. Probably mostly a regulatory thing: Danish banks consent to the risk of 7 days of outstanding payments on debit cards, but foreign banks do not.
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Also for debit cards? (The OP is incorrect; this is for debit cards, not credit cards.)
There's a huge difference – credit cards can work off-line as they do not need to check the account balance, but debit cards needed an internet connection to check the amount to be deducted is available.
They very likely handle debit cards the same way: by just allowing people to spend for a week without checking the balance. It used to be possible using Danish debit cards as well but was removed for security reasons (financial security, not security security).@michael @harrysintonen @randahl
Does this mean the system has a copy of everyone's balance, or at least balance range? Or are they just taking the risk that someone with a very low debit balance could spend money they don't have for a week?
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@michael @harrysintonen @randahl
Does this mean the system has a copy of everyone's balance, or at least balance range? Or are they just taking the risk that someone with a very low debit balance could spend money they don't have for a week?
@cptbutton AFAIK it's a risk based system. There likely is a cap to the amount you can pay, too. Note that you only use it when the network is down, which reduces the risk of abuse significantly.
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J jwcph@helvede.net shared this topic
