Core Points - A large-scale credit card fraud incident has occurred involving Shanghai Pudong Development Bank (SPDB) credit cards, particularly the "Red Sand" card, with multiple cardholders reporting unauthorized transactions totaling nearly 19,000 RMB [2][4][10] - Cardholders did not receive any alerts or notifications during the fraudulent transactions, raising concerns about the bank's security measures [4][6][8] - SPDB has assured customers that they will not bear the losses from these fraudulent transactions and is actively investigating the incident [3][16] Group 1: Incident Overview - The fraud primarily affected SPDB's "Red Sand" credit card holders, with reports of unauthorized transactions occurring in Brazil [2][15] - Multiple cardholders, including individuals in different countries, experienced similar unauthorized charges around the same dates [2][4] - The total amount of unauthorized transactions reported by affected cardholders reached approximately 19,000 RMB [4][8] Group 2: Customer Reactions and Bank Response - Cardholders expressed frustration over the lack of notifications and the inability to prevent further unauthorized transactions despite taking immediate action to report the fraud [4][6][10] - SPDB's credit card center has stated that they are committed to protecting customer rights and will cover the losses incurred by the fraud [3][16] - The bank has initiated an emergency investigation and formed a special team to trace the source of the risk and prevent further incidents [3][15] Group 3: Security Concerns - Analysts suggest that the incident may be a result of organized technical fraud attacks, indicating a potential vulnerability in the security measures of the affected credit card products [15][14] - The incident highlights the ongoing issue of credit card fraud and the need for banks to enhance their security protocols to protect customers [14][17] - Legal experts emphasize that banks have a responsibility to ensure transaction security and must take appropriate measures to prevent fraud [16][17]