Researchers have found that 1.5 million dark web payment card data belong to US citizens. Visa cards were the most frequent, with 913,955 found on the darknet, followed by Mastercard with 406,851 cards and American Express with over 143,836. And, Australia and Hong Kong were the next most affected places, with details on 419,806 and 399,537 cards found, respectively. According to research, a card's vulnerability depends on the proportion of non-refundable cards, the country's population, and
