At what point in the SDLC are security controls implemented?

At what point in the SDLC are security controls implemented?

• A. Initiation Phase
• B. Development/Acquisition Phase
• C. Implementation Phase
• D. Operations/Maintenance Phase

Answer: (C)

While security controls are a critical aspect of the software development life cycle (SDLC) and are considered throughout the entire process, they are specifically implemented during the Implementation Phase. In this phase, the system is constructed, which includes the actual coding of the software and the integration of security measures designed to protect the system and its data. During the Implementation Phase, various security controls such as access controls, encryption, and secure coding practices are put into place to ensure that the system operates securely. This is a crucial stage where the theoretical security measures discussed in earlier phases are turned into practical, functioning components of the system. The effectiveness of security controls is highly dependent on proper implementation; failing to do so can leave vulnerabilities that could be exploited later. Security considerations mentioned during earlier phases such as Initiation and Development/Acquisition might guide the overall strategy, but the actual application happens in the Implementation Phase. In later phases, like Operations/Maintenance, while security may be monitored and adjusted, the foundational security controls are established during the Implementation Phase. This systematic approach is essential to ensuring that security is integrated into the core of the system rather than being an afterthought.

While security controls are a critical aspect of the software development life cycle (SDLC) and are considered throughout the entire process, they are specifically implemented during the Implementation Phase. In this phase, the system is constructed, which includes the actual coding of the software and the integration of security measures designed to protect the system and its data.

During the Implementation Phase, various security controls such as access controls, encryption, and secure coding practices are put into place to ensure that the system operates securely. This is a crucial stage where the theoretical security measures discussed in earlier phases are turned into practical, functioning components of the system. The effectiveness of security controls is highly dependent on proper implementation; failing to do so can leave vulnerabilities that could be exploited later.

Security considerations mentioned during earlier phases such as Initiation and Development/Acquisition might guide the overall strategy, but the actual application happens in the Implementation Phase. In later phases, like Operations/Maintenance, while security may be monitored and adjusted, the foundational security controls are established during the Implementation Phase. This systematic approach is essential to ensuring that security is integrated into the core of the system rather than being an afterthought.