You are being asked to account for tools nobody registered. AI did not arrive at your company through procurement; it arrived through browser tabs, through features that switched on inside software you already owned, and through agents nobody wrote down. Compliance automation was built for the world where things get onboarded.
When we wrote the Wiz version of this question, the answer was a clean layer distinction: runtime protection of deployed agents is simply a different job than shadow-AI governance. That move does not work for Vanta, and pretending it does would be the kind of claim this series refuses to make. Vanta is the dominant compliance-automation platform for exactly the mid-market segment we serve — roughly 16,000 customers, a reported $300M in annual recurring revenue, a Leader in the Forrester Wave for GRC platforms (Q2 2026) — and it has moved squarely into AI governance: EU AI Act controls and policies, NIST AI RMF support, and an agentic risk product that maps vendors, tools, and AI policies across your connected stack. Vanta’s own executives are among the loudest public voices on shadow AI. If someone tells you Vanta ignores this problem, they are wrong.
The first real difference: how each one discovers AI
Vanta’s discovery rides its integration and third-party risk layer. You connect your identity provider, your cloud, your SaaS stack; Vanta’s automation and AI agents reason over what those connected systems and your questionnaire answers reveal. That is a strong design for the sanctioned program — and it means the discovery surface is, structurally, the stack you connected.
SanctumShield starts from the opposite assumption: the AI that matters most is the AI that never touched an integration. Its Discover stage is network-log observation — paste or upload a firewall, proxy, or DNS export, and the product matches outbound traffic against a curated registry of 71 verified AI endpoints across all four layers of the shadow-AI surface. The unsanctioned browser tab, the personal-account login that never hit SSO, the embedded feature that switched itself on — these show up in what left the network, whether or not anyone connected or attested to anything. One sentence carries the whole distinction: Vanta sees the AI you onboarded. SanctumShield sees the AI you didn’t.
The second real difference: what you are holding at the end
Vanta’s deliverable is a tenant — a continuously maintained compliance workspace, evidence dashboards, and a Trust Center aimed at your auditor and your prospects. That is what a GRC platform should produce, and for the frameworks you have adopted it compounds in value over months of integration and audit cycles.
SanctumShield’s deliverable is a document set: a regulation-anchored AI Acceptable Use Policy generated for your industry and jurisdictions (not imported and mapped), an Executive Risk Report with severity-ranked findings and a 90-day plan, a one-page Board Memo — and a verification URL on the report and the AUP that an underwriter, auditor, or acquirer can check independently for five years, without a login to anyone’s tenant. A renewal questionnaire, a board packet, and a diligence file consume portable documents, not dashboard access. Different output, built for a different reader.
So — are you covered?
If the question means “is someone running continuous compliance automation across our sanctioned stack, including its AI frameworks” — with Vanta, yes, credibly. If it means “is our discovery grounded in observation of what actually left the network, and can we hand an outsider a dated, independently verifiable governance artifact” — that is a different method and a different output, and it is the whole of what SanctumShield does. The two are adjacent, not interchangeable: plenty of organizations will run Vanta for the compliance program and SanctumShield for the observed shadow-AI picture and the portable artifact chain. This is not a takedown. It is a map.
Attestation tells you what the connected stack reveals. Observation tells you what left the network. Ask for both sentences before you say “covered.”
Vanta product facts here (customer count, ARR, Forrester Wave placement, AI-governance offerings, integration-based discovery model) reflect Vanta’s own public materials and public reporting as of mid-2026 and may drift. The full side-by-side — including the seven defensible differentiators and sourced pricing ranges — lives at /vs-vanta.