Ent vs Microsoft Purview for insider risk when AI agents act for employees

A file policy that raises an alert after the copy finished has already lost the file. Ent’s founders built their June 2026 launch on that timing problem, arguing that attacks which once took days now land in seconds. It is the useful lens for comparing Ent with Microsoft Purview.

It is easy to file Ent as another DLP agent. Its launch material describes something closer to a behavioral layer: a lightweight agent on Windows, macOS, Linux, and browsers that reads activity across apps, browsers, data movement, and local runtimes, judges the intent behind an action by a person or an AI agent, and applies just-in-time interventions. Purview splits the same territory into Insider Risk Management, which scores risky activity from Microsoft 365 and Microsoft Graph logs, and Endpoint DLP, which enforces data rules on devices. Ent’s capabilities come from launch material and are stated, not independently demonstrated.

Buy Ent when the risk you need to stop lives in browser, app, and AI-agent actions across platforms, and intervention has to happen before the action completes. Buy Microsoft Purview when the organization already licenses Microsoft 365 E3 or E5 and wants insider risk cases, DLP, and eDiscovery in one compliance stack.

Overview

	Ent	Microsoft Purview
Primary use case	Workspace security: insider risk, AI usage governance, data loss prevention, and last-mile threat prevention from one endpoint agent	Data security and compliance: Insider Risk Management, Communication Compliance, DLP, information protection, and eDiscovery for Microsoft 365 data
Day-to-day workflow	Set customer-defined policy, let the agent evaluate intent at the moment of use, and review interventions and incidents with behavioral context	Configure insider risk policies from templates, triage alerts into cases, and escalate to eDiscovery (Premium) when an investigation needs it
Main buying consideration	No public pricing. Hosted in the customer’s cloud or as an Ent-hosted service, sold by demo and quote	Microsoft Purview Suite USD 12 per user per month paid yearly, requiring Microsoft 365 E3. Included in Microsoft 365 E5 at USD 60 per user per month paid yearly

We reviewed Ent’s homepage, plus Microsoft’s Purview Suite and Purview pricing pages, the Purview licensing guidance, and the Insider Risk Management overview on Microsoft Learn, on 14 Oct 2026. We did not run either product.

Ent

Microsoft Purview

Editions and pricing

Purview’s price is a per-user license that depends on the Microsoft 365 plan you already own. Ent publishes no price and offers a choice of hosting.

	Ent	Microsoft Purview
How it is sold	One platform, self-hosted in the customer’s cloud or hosted by Ent	Microsoft 365 E5, the Purview Suite add-on for E3, or smaller add-ons such as Microsoft 365 E5 Insider Risk Management
Prerequisite	None stated	Microsoft 365 E3, or Office 365 E3 plus Enterprise Mobility + Security E3, for the add-ons
Deployment targets	Windows, macOS, Linux, and browser extension	Microsoft 365 services, onboarded Windows and macOS devices, and connectors for third-party indicators

What each product watches

Both read user activity to find risk. They read it at different layers.

	Ent	Microsoft Purview
Signal source	Behavior across applications, browsers, workflows, data movement, and local runtimes, read by an on-device agent	Logs from Microsoft 365 and Microsoft Graph, device indicators from onboarded endpoints, and third-party indicators through data connectors
AI agents	Evaluates human and AI-agent intent as separate actors and governs AI usage	Protection for Microsoft 365 Copilot data is listed in the Purview plan. Coverage of third-party agents beyond that is not confirmed in public documentation
Privacy model	Hosted in the customer’s cloud for data sovereignty	Privacy-by-design architecture that balances user privacy against organizational risk

Intervention and investigation

Both can act on risk. The question is when.

	Ent	Microsoft Purview
Timing	Just-in-time interventions before the action completes, per Ent’s launch material	Insider risk alerts and cases after activity is scored. Endpoint DLP can block configured actions on devices
Investigation	Incidents investigated with behavioral context covering what happened, why, and what should happen next	Case management, reviewer notifications, and escalation to eDiscovery (Premium)
Ecosystem	Integrations are on the stated roadmap. A list is not confirmed in public documentation	Integrated workflow across Purview solutions, Defender, and Microsoft 365

Choose Ent when Linux endpoints, browser and local AI runtimes, or self-hosted data sovereignty are requirements, and when an intervention has to land before the action completes. Choose Microsoft Purview when the data that matters already lives in Microsoft 365 and insider risk cases should flow into DLP and eDiscovery under licenses you may already hold.