The Shadow Supply Chain: The SSO & AI Visibility Gap | UpGuard

This research post describes a large and growing "shadow supply chain" where 31.4% of vendor interactions bypass SSO/IdP via direct logins and rapid adoption of Shadow AI creates extensive unmonitored SaaS and AI instances; unmonitored vendors show lower average security scores and higher rates of poor/critical risk, prompting a recommendation to adopt usage-based discovery that follows user behavior rather than procurement inventories.