This document discusses how implementing a public key infrastructure (PKI) with digital certificates can help banks protect customers and secure communications, similar to how Miss World 2013 used PKI. It recommends banks issue digital certificates to users and servers to verify identities and authenticate secure connections between servers. Using a PKI appliance can simplify deploying and managing PKI across an enterprise network by providing a single source for both software and hardware and giving administrators centralized visibility and control over all servers.