This document provides information on database security. It discusses how database security protects confidentiality, integrity and availability of databases. It also discusses the importance of database security to prevent data loss or compromise. Some of the largest data breaches in 2018 are summarized, including breaches of Aadhaar and Facebook that exposed over 1 billion and 87 million records respectively. Common attack vectors and frameworks for implementing database security are referenced. Finally, the document outlines a methodology for implementing proven database security practices around inventory, testing, compliance, eliminating vulnerabilities, enforcing least privileges, monitoring for anomalies, data protection, backup plans, and responding to incidents.