Sam’s Club, a division of Wal-Mart Stores, is investigating a security breach that has exposed credit card data belonging to an unspecified number of customers who purchased gas at the wholesaler’s stations between Sept 21 and Oct. 2, according to Computerworld. Sam’s Club said it was alerted to the problem by credit card issuers who reported that customers were complaining of fraudulent charges on their statements. Sam’s Club is currently working with both Visa International and MasterCard International to investigate the breach. In a statement, Visa said it has alerted all of the affected financial institutions, asked them to provide independent fraud-monitoring services to affected customers and requested that they issue new cards as needed. –Alison Bass SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe Related content feature Mastercard preps for the post-quantum cybersecurity threat A cryptographically relevant quantum computer will put everyday online transactions at risk. Mastercard is preparing for such an eventuality — today. By Poornima Apte Sep 22, 2023 6 mins CIO 100 CIO 100 CIO 100 feature 9 famous analytics and AI disasters Insights from data and machine learning algorithms can be invaluable, but mistakes can cost you reputation, revenue, or even lives. These high-profile analytics and AI blunders illustrate what can go wrong. By Thor Olavsrud Sep 22, 2023 13 mins Technology Industry Generative AI Machine Learning feature Top 15 data management platforms available today Data management platforms (DMPs) help organizations collect and manage data from a wide array of sources — and are becoming increasingly important for customer-centric sales and marketing campaigns. By Peter Wayner Sep 22, 2023 10 mins Marketing Software Data Management opinion Four questions for a casino InfoSec director By Beth Kormanik Sep 21, 2023 3 mins Media and Entertainment Industry Events Security Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe