This article highlights a critical gap in modern identity security: the distinction between secure authentication and secure access. While many organizations have implemented robust front-door defenses like FIDO2, device trust, and MFA, these controls often fail to protect the integrity of downstream sessions. Once an Identity Provider (IdP) hands off a SAML assertion or OIDC token to a service provider, the resulting session cookies are frequently portable and vulnerable to theft by information stealer malware, allowing adversaries to bypass initial security layers.
To bridge this gap, the text recommends a defense-in-depth approach focusing on session persistence and integrity. Key strategies include deploying token binding where supported, drastically shortening session timeouts for sensitive applications, and implementing IP pinning through VPNs or Security Service Edge (SSE) solutions. Furthermore, security teams are encouraged to monitor for session anomalies in SIEM logs and advocate for the adoption of the Shared Signals Framework to enable real-time risk communication between IdPs and SaaS applications.
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