This report provides a comprehensive overview of database management systems (DBMS), beginning with an introduction to their fundamental components, including data, hardware, software, and users. It explores the critical role of DBMS in data organization, retrieval, and security. The report delves into the requirements for database security, emphasizing the importance of protecting sensitive information from various threats such as data theft, SQL injection, and malware. It examines database vulnerabilities and countermeasures, including excessive privilege abuse, SQL injection, malware, and misconfigurations, along with solutions. The report also discusses security standards, including confidentiality, integrity, and availability (CIA triad), and data loss prevention strategies. It highlights the importance of authentication, authorization, and access control policies. The conclusion stresses the need for strong security policies, including corporate database security to mitigate identified threats. The report references various research papers and journals to support its findings.