An organization plans to deprecate legacy cryptographic protocols across all internal application gateways during a scheduled maintenance window. Following the change execution, several mission-critical legacy internal applications lose connection to the centralized authentication service, causing widespread business disruption. Investigation reveals that while the protocol deprecation was approved by the Change Advisory Board (CAB), the technical change request did not evaluate application-level dependency on legacy protocol suites. Which of the following change management practices was omitted prior to submission?
- Performing a security impact assessment and system dependency analysis to identify technical prerequisites and legacy integration requirements.Answer
- BReclassifying the protocol deprecation from a preventive control to a detective control within the enterprise asset repository.
- CDeploying network perimeter firewall rules to block port 80 HTTP traffic across affected application segments.
- DAutomating immediate account revocation playbooks within the Security Orchestration, Automation, and Response (SOAR) system.
Answer
Performing a security impact assessment and system dependency analysis to identify technical prerequisites and legacy integration requirements.
The correct answer emphasizes performing a security impact assessment and dependency analysis. Before any major infrastructure modification is presented to a Change Advisory Board (CAB), administrators must evaluate how security configuration changes affect existing applications and inter-service dependencies. Identifying these legacy requirements ahead of time ensures necessary adjustments or exceptions are addressed before deployment.
Step-by-Step Solution
Key Concept
Security Impact Assessment and Dependency Analysis in Change Management