What does PCI-DSS stand for in the context of credit card and e-commerce security standards?
PCI-DSS (Payment Card Industry Data Security Standard) is an information security standard mandated for organizations that handle branded credit cards from major card schemes.
What is a 'Chargeback' in credit card e-commerce transactions?
A chargeback occurs when a transaction is reversed by the card issuing bank, refunding money to the buyer following a customer dispute, unfulfilled order, or fraudulent transaction.
Which of the following is an example of an Electronic Fund Transfer (EFT) service used in India?
NEFT, RTGS, and IMPS are all electronic fund transfer mechanisms provided by Indian banking systems for moving money between bank accounts.
What is 'Tokenization' in payment card security?
Tokenization replaces 16-digit card account numbers with non-sensitive randomly generated surrogate values (tokens), so actual card details are never stored on merchant databases.
Which type of digital payment protocol allows a user to spend e-cash anonymously while preventing double spending through blind signatures?
David Chaum's blind signature cryptographic scheme enables digital cash tokens to be signed by a bank without revealing the specific coin serial number, ensuring untraceable anonymous digital payments.