A relay proxy is a server or software component that intercepts network traffic between clients and servers, forwarding requests and responses on behalf of the client. This intermediary role allows organizations to enforce security policies, such as encrypting data, filtering content, and monitoring traffic for threats. Relay proxies are commonly used to protect sensitive information, ensure compliance with regulations, and provide an additional layer of anonymity for users. By acting as a gatekeeper, a relay proxy helps prevent direct access to internal networks, reducing the risk of cyberattacks and unauthorized data exposure.