MasterCard has made Safety Net available globally. The service identifies anomalies in signature (dual message) and PIN (single message) transactions that indicate fraud resulting from the cyberhacking of issuers or their processors. Safety Net is a second line of defense behind systems that issuers and processors deploy. It intervenes on behalf of participating customers to shut down all card authorization requests tied to an account or to specific channels such as ATM or ecommerce. Issuers are then alerted. Safety Net has been under development since 2012 when hackers compromised a processor...