Security Test and Evaluation (ST&E) in the DITSCAP Process

Security Test and Evaluation (ST&E) occurs in Phase 3 of the DITSCAP C&A process.

Answer: D is incorrect.

The Phase 1 of DITSCAP C&A is.

known as Definition Phase.

The goal of this phase is to define the C&A level of effort, identify the main C&A roles and responsibilities, and create an agreement on the method for implementing the security requirements.

The Phase 1 starts with the input of the mission need.

This phase comprises three process activities: obtain a fully integrated system for certification testing and accreditation.

This phase takes place between the signing of the initial version of the SSAA and the formal accreditation of the system.

This phase verifies security requirements during system development.

The process activities of this phase are as follows: DITSCAP C&A is known as Post Accreditation.

This phase starts after the system has been accredited in the Phase 3

The goal of this phase is to continue to operate and manage the system and to ensure that it will maintain an acceptable level of residual risk.

The process activities of this phase are as follows: System operations Security operations Maintenance of the SSAA Change management Compliance validation.

The DITSCAP (Department of Defense Information Technology Security Certification and Accreditation Process) process is a structured method for certifying and accrediting information systems for use within the Department of Defense (DoD) and other government agencies. The DITSCAP process includes six phases, each of which includes specific tasks and activities.

Security Test and Evaluation (ST&E) is an essential phase of the DITSCAP process that occurs during Phase 4. In this phase, the system is evaluated to ensure that it meets the security requirements specified in the System Security Authorization Agreement (SSAA) developed during Phase 3.

During the ST&E phase, the security controls and mechanisms implemented within the system are tested to ensure that they provide adequate protection against unauthorized access, modification, or disclosure of information. The testing is performed by a qualified independent testing team (ITT), which is responsible for executing the test cases and reporting the results to the accrediting authority.

The ST&E phase includes the following tasks:

• Developing a test plan that outlines the scope, objectives, and methodology of the testing activities
• Conducting vulnerability assessments to identify potential security weaknesses and risks within the system
• Performing penetration testing to simulate attacks against the system and evaluate the effectiveness of the security controls
• Conducting functional testing to ensure that the system operates as intended and meets the security requirements
• Analyzing the results of the testing activities and documenting any findings or recommendations for improvement

In summary, the Security Test and Evaluation (ST&E) phase of the DITSCAP process occurs during Phase 4, and it is an essential component of the certification and accreditation process for information systems used within the Department of Defense (DoD) and other government agencies.