Coal power plants.
this post was submitted on 12 Sep 2025
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Blockchain. It was an interesting poc, but it has yet to have a useful implementation apart from scams.
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The oldest two mechanisms of authenticating on credit cards.
From oldest to newest, they are:
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Printed data on card.
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Magstrip (which basically has the same data in machine-readable form).
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Smartcard chip with contacts.
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Wireless.
The first two mechanisms hand over all the data required to impersonate the cardholder whenever used, which isn't very secure. Yes, there's value to keeping a mechanism around for a while to permit transition time, but we should have had tap-to-pay hardware on PCs and phones and the like a long time ago.
Does smartcard and wireless actually have an encryption layer of some kind?
I'd assume so, but more importantly, for both, there's a cryptographic signature being performed by the card. The credentials never leave the card
there's a private key on the card, and what goes out is a signature on the transaction, which is useless for doing other transactions.
That's not true for all cards, at the very least. Skimming wirelessly by RFID is or was a thing. The whole backbone of the credit card system is designed to expect the number.
I disagree that we should have a card reader on our computers for payments.
That is just a way too big of a security concern.
I prefer something like the Swedish system Swish, you have a separate app on your phone where you can send money to friends and family as well as pay for stuff online.
Sadly, while Klarna supports Swish, they require the use of a Klarna account to use it, and since most internet shops in Sweden uses Klarna it limits the ability to use it as I want to.
and with that you need a smartphone, with a google-approved operating system and with it half of the factory bloatware, or otherwise you are barred from paying online, right? that sounds such a good idea.
no.
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Chat control and any similar legeslations
Humans
Gender essentialism and tuberculosis
Electricity