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VSD Domain
Shrink the target, harden the surface
Vulnerability and Surface Defense is the walls of your organization. This domain covers attack surface management, vulnerability assessment, patch management, and continuous surface reduction. Every unmanaged asset, every unpatched system, every exposed service is a potential entry point. VSD practitioners shrink the target.
CDA Proprietary Methodology
Continuous Surface Reduction (CSR) is a methodology for systematically discovering, measuring, and reducing an organization's attack surface. CSR treats surface reduction as an ongoing operational discipline, not a one-time project.
Core subject areas covered in VSD courses across all certification levels.
Asset inventory, shadow IT detection, external surface enumeration, and cloud asset discovery.
Authenticated and unauthenticated scanning, tool configuration, and scan scheduling.
CVSS scoring, exploit probability, business context, and risk-based remediation ordering.
Patch testing, deployment automation, rollback procedures, and compliance tracking.
Scoping, rules of engagement, testing methodologies, and professional reporting.
Port reduction, service hardening, unnecessary feature removal, and network segmentation.
Six courses, one per certification level, taking you from foundations to command.
Roles that VSD certifications prepare you for, from entry level to executive.
Start with Vulnerability & Surface Defense Foundations (free), then advance through six certification levels to Commander.