<ul data-eligibleForWebStory="false"><li>The importance of backend security as the last line of defense is emphasized in a developer's internship journey.</li><li>Initially, RBAC checks were done on the frontend for a system called Lura, but vulnerabilities arose if malicious requests were sent directly to the backend.</li><li>To enhance security, the focus shifted to securing NestJS backend endpoints through the implementation of custom guards, decorators, and workspace validation logic.</li><li>Testing was conducted using Jest to ensure the effectiveness of the implemented security measures, highlighting the significance of robust backend checks in protecting users.</li></ul>

Day 21: Backend Security – The Last Line of Defense

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