Microsoft Purview Alternative for AI Prompt Protection
Microsoft Purview is a comprehensive enterprise data security platform built for large organisations with broad compliance requirements. For teams that specifically need to control what employees send to AI tools, it is often more than what is needed — and a significant deployment commitment.
Ventrin is a Chrome extension that scans and sanitises employee prompts locally in the browser before they are sent to ChatGPT, Claude, Gemini or Copilot. When sensitive content is detected, Ventrin warns the employee, rewrites the prompt automatically, or blocks the send — depending on your team's policy. Sensitive data never leaves the device unintentionally. Admins see every risk event in a central dashboard.
Why some teams look for a focused alternative
Microsoft Purview covers data classification, compliance management, information protection, insider risk and eDiscovery across an enterprise environment. It is a powerful platform for organisations already invested in the Microsoft 365 ecosystem.
For a team of 20 to 200 people that wants one specific thing — to stop employees pasting sensitive data into ChatGPT — the full Purview deployment is a significant commitment. It requires Microsoft 365 E3 or E5 licensing, integration work, extended configuration and ongoing management from a specialist team.
Smaller organisations, non-Microsoft shops and teams that need a solution in days rather than months often benefit from a more focused approach.
Full Purview capability requires E5 licensing. Cost per seat is significant for smaller teams.
Purview configuration for AI prompt controls is not out-of-the-box. Specialist setup takes time.
Purview works best within a Microsoft 365 environment. Non-Microsoft shops face integration challenges.
When the requirement is specifically prompt-level AI protection, a broad DLP platform adds management overhead.
Purview's Copilot coverage is strongest for Microsoft Copilot. Coverage of ChatGPT and Claude may vary.
A focused browser-based alternative
Ventrin is not a Microsoft Purview replacement for enterprise data governance. It is a focused control for one specific problem: what employees type into AI tools in the browser.
For teams that need prompt-level protection for ChatGPT, Claude, Gemini and Copilot — deployed in a day, managed from a simple admin dashboard, without a Microsoft E5 commitment — Ventrin is designed for that use case directly.
The comparison below is structured to help you assess which approach fits your actual situation.
Key Ventrin features for this use case
Chrome extension. Runs locally. No network configuration, no proxy, no integration project.
Policies configured in the admin dashboard. Extension distributed in minutes. Same-day deployment.
Covers ChatGPT, Claude, Gemini and Microsoft Copilot through a single extension.
Define warn, sanitise and block rules per team and data type. Focused on the prompt layer.
Sensitive data is removed on device before the prompt is sent. No proxy processing.
Exportable log of every flagged event. Clear visibility without enterprise DLP complexity.
Focused vs enterprise AI data security
How broad enterprise platforms compare with a browser-based prompt protection approach.
| Aspect | Broad enterprise data security | Browser-based AI prompt protection Ventrin |
|---|---|---|
| Setup complexity | High — requires licensing, integration and specialist configuration | Low — browser extension, admin dashboard, same-day deployment |
| Buyer profile | Enterprise security teams with dedicated DLP resource | SMBs, legal, compliance leads and IT managers without specialist DLP teams |
| AI prompt focus | Partial — strongest for Microsoft Copilot; ChatGPT coverage varies by configuration | Primary focus — ChatGPT, Claude, Gemini and Copilot all covered from day one |
| Admin visibility | Deep — unified compliance centre, eDiscovery, risk scoring | Clear — event log, risk type, action taken, user and timestamp |
| Policy depth | Extensive — sensitivity labels, classification, retention, DLP policies across Microsoft services | Focused — warn, sanitise, block rules per team and data type for AI prompts |
| Speed to deploy | Weeks to months for meaningful AI prompt coverage | Days — typically same-day for small to mid-sized teams |
| Best fit | Large organisations already on Microsoft E5 with broad data governance needs | Teams that specifically need AI prompt controls without a full enterprise DLP platform |
Built for teams that cannot afford a data incident
Local-first detection
The scanning model runs in your browser, not on our servers. Sensitive content never leaves the device for analysis.
No data egress
Ventrin does not receive, store or process your team's prompt content. Only risk event metadata is logged.
Configurable policy controls
Warn, sanitise or block based on content type and team role. Full control over how the extension behaves.
Admin event logs
Every flagged event is recorded with risk type, action and timestamp. Provides the audit trail your compliance process needs.
Protect your team's AI use from the browser
Ventrin deploys as a Chrome extension. No proxy, no network change, no IT project. Most teams are protected on the same day.
Frequently asked questions
Yes. These are complementary controls. Purview handles broad data governance across the Microsoft 365 estate. Ventrin adds a focused prompt-layer control for browser-based AI tools. Teams using Purview for email and file DLP can add Ventrin to cover the specific AI prompt exposure point.
Yes. Ventrin is independent of any productivity suite. It works as a Chrome extension regardless of whether the organisation uses Google Workspace, Microsoft 365 or another platform.
Microsoft Purview has specific protections for Microsoft Copilot. Coverage for external AI tools like ChatGPT, Claude and Gemini depends on the specific configuration and the DLP policies applied. Ventrin covers all major browser-based AI tools directly from installation.
Yes. Ventrin is particularly well suited to teams of 5 to 200 users that need a working solution quickly. There is no minimum seat count. Pricing is per seat with no long-term contract requirement during early access.
Most teams are protected on the same day. The admin sets up the workspace, configures policies and distributes the extension. Employees install in under two minutes. No IT infrastructure changes are needed.
No. Ventrin focuses on the AI prompt box. It does not monitor file storage, email or document management systems. If you need data protection across your document estate, a broader DLP platform is appropriate. Ventrin fills the AI prompt gap that those platforms often leave.
Let your team use AI without leaking sensitive data.
Join legal and professional teams already using Ventrin to protect their AI use. Browser-based, locally detected, fast to deploy.