This report provides an overview of database management systems (DBMS), focusing on the MakeBelieve application. It covers the core components of a DBMS, including data, hardware, software, and users, and explains how these components interact to manage and retrieve data. The report details the importance of database security, outlining various threats such as SQL injection, malware, and database misconfigurations. It also discusses countermeasures like access control policies, audit trails, and the use of MVC architecture and stored procedures to mitigate risks. Furthermore, the report emphasizes the significance of security standards, including confidentiality, integrity, and availability, and explores the use of authentication and authorization processes. The report also includes a discussion on database vulnerabilities and countermeasures, with examples like excessive privilege abuse and malware attacks. Finally, it concludes with recommendations for establishing a robust security policy within the MakeBelieve database environment, highlighting the importance of strong security methods and corporate database security.