Why API Security Is No Longer an AppSec Problem – And What Security Leaders Must Do Instead
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API security has outgrown traditional AppSec approaches because modern attacks exploit business logic and authorization flaws through legitimate-looking traffic in production, rather than malformed requests. The shift-left strategy alone is insufficient since APIs are continuously deployed, consumed by diverse clients, and abused at runtime in ways that pre-production testing cannot predict. Effective API security requires treating it as a cross-functional business risk with runtime behavioral monitoring, not just a development-phase vulnerability scanning problem. Security leaders must prioritize attack-aware visibility, runtime protection against automation and abuse patterns, and alignment with business impact rather than relying solely on pre-production controls.