Design application security from portfolio risk and threat models through secure development, workload identity, API controls, WAF protection, deployment, and runtime learning.
Triage the application portfolio
Identify business criticality, internet exposure, data sensitivity, technology, owners, dependencies, and current security evidence. Prioritize applications where exposure and impact combine, rather than applying the same review depth everywhere.
Threat model before selecting controls
Map trust boundaries, identities, data flows, entry points, privileged operations, dependencies, and failure modes. Convert threats into requirements that can be implemented and tested. Revisit the model when architecture or business use changes.
Secure the full lifecycle
Standards should cover design review, coding, dependencies, secrets, infrastructure-as-code, testing, artifact integrity, deployment approval, runtime protection, vulnerability response, and retirement. Give developers fast feedback while reserving stronger gates for material risk.
Protect identity and APIs
Use managed or federated workload identities rather than long-lived secrets where possible. API Management can provide authentication integration, authorization policy, quotas, transformation, and observability. A web application firewall filters supported web threats, but it does not replace secure code, identity controls, or API authorization.
Learn from production
Runtime signals, incidents, penetration tests, and vulnerability findings should update threat models and engineering standards. Ownership continues after deployment.