Tag: confused deputy
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Is OAuth Enough? Security Limitations in Modern Systems
OAuth has become the backbone of modern authentication and authorization systems. It powers API access, mobile applications, SaaS integrations, service-to-service communication, and identity federation across organizations. It is often treated as a solved problem. It is not. OAuth is a powerful delegation framework, but it is frequently misunderstood, misapplied, or over-trusted. Its flexibility is both…
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A2A Security Explained: Common Risks in Service-to-Service Integrations
Modern systems are no longer isolated applications. They are networks of services, partners, and platforms exchanging data and triggering actions across organizational boundaries. Application-to-Application (A2A) communication has become the backbone of SaaS ecosystems, internal microservices, and B2B integrations. Despite its importance, A2A security is often underestimated. Many teams assume that once authentication is in place,…