This paper presents a comprehensive analysis of rule-based systems as decision support systems (DSS) in several domains. Rule-based systems provide a structured approach to decision making by using predefined rules to guide the decision process. This analysis aims to explore the benefits, limitations, and challenges associated with the use of rule-based systems as administrative tools for decision support, as well as the possible vulnerabilities of such systems to cyber threats. The paper reviews relevant literature and examines real-world case studies. The findings of this analysis contribute to a better understanding of the capabilities, potential applications, and security considerations of rule-based systems in administrative decision support.