LAS VEGAS – Credit card companies for the most part have moved away from “swipe and signature” credit cards to chip and pin cards by this point; the technology known as EMV (Europay, MasterCard, and Visa) which is supposed to provide consumers with an added layer of security is beginning to see some wear, according to researchers....

American Express has begun notifying cardholders that their data may have been compromised in a third-party breach. A notification letter filed on March 10 with California’s attorney general indicates that AmEx account numbers, user names and other information including expiration dates may have been accessed. “We became aware that a third party service provider engaged...