Your bank gets paid every time you buy a coffee. Not by you, by the shop. It's called interchange, and in Europe the law caps it at 0.2% on debit cards and 0.3% on credit. Every tap pays the bank that issued the card.

Your bank gets paid every time you buy a coffee. Not by you, by the shop. It's called interchange, and in Europe the law caps it at 0.2% on debit cards and 0.3% on credit. Every tap pays the bank that issued the card.
CVE-2026-75031 - interchange
The Interchange web‑store software’s admin “quick question” feature can run arbitrary Perl code on the server. If the default settings are used, anyone on the internet could inject…
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A swiped card can still cost more than expected if the transaction gets downgraded. Here's why. Full post: https://paywavez.com/go/pw-interchange-downgrade-explained-bluesky #interchange #merchantservices