Which feature of digital payment systems contributes to improved security?

Encryption technology is essential for enhancing the security of digital payment systems. It works by encoding data so that only authorized parties can access and understand the information being transmitted. This prevents unauthorized access and potential fraud, ensuring that sensitive information like credit card numbers and personal identification details are kept safe from cybercriminals.

In contrast, physical cash transfer does not utilize any technological measures to enhance security, making it inherently less secure in a digital context. Longer processing times can lead to vulnerabilities and opportunities for interception, which undermines security. Lastly, a lack of transaction tracking can leave users vulnerable, as there is no record to reference in the case of disputes or fraud. Thus, encryption technology stands out as the primary feature that directly enhances the security of digital payment systems.