# Part One: Introduction to database security

This part of the manual provides a conceptual introduction to database security.

- Why databases need security
  An unsecured database has numerous vulnerabilities to different kinds of threats.
- Defenses against security threats
  Defenses against threats can be divided into two categories.
- Defenses mapped to threats
  The following table maps defenses to examples of threats that they parry.
- Designing safer Derby applications
  The following tips should help you write and deploy safer applications that use Derby.
- Security terminology
  In discussing Derby defenses, the following terms are useful.