Shadow AI Discovery and Governance Tools Compared for UK Buyers
The tools sold to govern employee AI use do five different jobs that vendors blur: discovery, enforcement, sanctioned access, data protection and licensing visibility. This comparison groups Microsoft Purview and Defender for Cloud Apps, the SASE platforms, browser and endpoint tools, and the AI gateways by the job each does, states which prices are published and which are quote-only, and sets out the Microsoft licence tiers and consumption meters Purview's AI capabilities require. It then examines the dividing line that matters most: which tools read employee prompt text, and why ICO guidance makes that a workplace monitoring decision needing a DPIA, transparency and a lawful basis before deployment.