The vulnerability of MasterCard, Visa, and American Express payment services lies in the insufficient authorization of ARQC cryptographic algorithms generated by Apple Pay, Samsung Pay, and GPay mobile wallets. This allows attackers to use AAC cryptographic algorithms on payment services, thereby enabling them to intercept transactions when the wallet or payment terminal decides to reject a transaction.

The vulnerability of MasterCard, Visa, and American Express tokenization services is related to the insufficient authorization of ARQC cryptographic keys generated by Apple Pay, Samsung Pay, and GPay mobile wallets. Exploiting this vulnerability could allow attackers to use AAC cryptographic keys...