First contact: An introduction to credit card security

I bet you have several cards issued by international payment systems (e.g. Visa or MasterCard) in your wallet. Do you know what algorithms are used in these cards? How secure are your payments? People pay with such cards every day but know very little about them. Numerous myths accompany card payments. But to understand what tricks can be used to steal money from a card, you must first get an idea of the payment mechanisms used in it.
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First contact. Attacks against contactless cards

Contactless payment cards are very convenient: you just tap the terminal with your card, and a few seconds later, your phone rings indicating that the transaction is completed. But this convenience has a downside: malefactors can steal money from such cards. This article provides an overview of methods used to hack NFC (near-field communication) payment cards.
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