What is Shadow SaaS? Causes, Risks, and Management Tips | UpGuard

## Executive Summary This article describes the problem of Shadow SaaS—unmonitored cloud applications and services adopted by employees outside sanctioned SSO/IdP controls—highlights the SSO blind spot and associated risks (data leakage, over-privileged access, compliance and reputational harm), and outlines a practical four-step playbook (technical discovery, employee engagement, risk-based prioritization, and nuanced response including vetting, alternatives, granular controls, and user education) for organizations to detect and manage these exposures.