## Subtitle: Securing Cardholder Data Transmissions Today's adventure brings us to the Portal Room, a pulsing hub filled with swirling vortexes of light, the gateways to countless destinations. Here we meet the vigilant Portal Protectors, the guardians of these transmission gateways. In this episode, the Compliance Wizard joins the Portal Protectors to discuss a topic of paramount importance - securing cardholder data transmissions. He raises his cybersecurity scroll, and with a flick of his wand, a holographic representation of data transmissions appears. The Wizard starts, "Data transmissions are like sending messages through these portals. If the portal isn't secure, an intruder could intercept the message." He points to the hologram, where strings of data are moving between two points. The Portal Protectors nod in agreement. They explain that they use secure communication channels, akin to protected portals, to ensure that data transmissions are safe. This involves encryption, turning the data into unreadable code that can only be decoded with a special key. One Protector elaborates, "We use what is known as Transport Layer Security, or TLS. It's like an enchanted shield for the data as it travels through the portal. Even if someone intercepts the data, without the decryption key, it's gibberish to them." In the realm of PCI DSS, securing data during transmission is as crucial as protecting it when it's stored. Without such measures, the Protected Kingdom's precious cardholder data could fall into the wrong hands. As our understanding of PCI DSS v4 deepens, we're reminded of the intricate layers of protection necessary to keep cardholder data secure. Join us next time when we delve into the mysteries of encryption with Chip, the Encryption Dog. And so, our adventure continues..."