This volume presents cutting-edge research on the evolving landscape of internet and systems security. The 18th International Conference on Risks and Security of Internet and Systems (CRiSIS 2023) convened in Rabat, Morocco, to address critical security challenges. This collection features 13 thoroughly reviewed full papers and 2 short papers, selected from 25 submissions, offering insights into contemporary security issues across internet applications, networks, and systems.

This collection of revised selected papers from CRiSIS 2023 offers a focused look at current internet and systems security challenges. The selection process, involving a review of 25 submissions to yield 13 full and 2 short papers, suggests a rigorous curation of topics. The content likely appeals to researchers and practitioners in computer science, information technology, and cybersecurity seeking to understand contemporary risks and solutions.