Final answer:
The three phases in security testing are the Preparatory Phase, where objectives and methodologies are established; the Implementation and Learning Phase, where testing occurs and vulnerabilities are identified; and the Program Evaluation Phase, where results are analyzed to evaluate and enhance system security.
Step-by-step explanation:
The three phases involved in security testing are essential for ensuring that a system or application is secure from potential threats. These phases are:
- Preparatory Phase - This initial stage involves establishing the objectives, scope, and methodology of the security testing. It is where you define what needs to be tested and the criteria for success.
- Implementation and Learning Phase - At this stage, the actual testing takes place. Testers execute tests, identify security vulnerabilities, and learn how the system reacts to various security threats.
- Program Evaluation Phase - Upon completing the tests, the results are analyzed to evaluate the security status of the system or program. This phase is crucial for understanding the effectiveness of the security measures and for planning any necessary improvements.
Each of these phases plays a significant role in the comprehensive assessment of a system's security posture.