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About

Liminal is a secure AI enablement platform that acts as a central hub for organizations to safely access and administer AI. Employees get unlimited access to the latest models from every leading provider. Security and compliance teams get the governance layer: policy enforcement, data protection, and complete visibility into every interaction. Sensitive information is detected and protected inside the prompt before it reaches any model, then restored in the response, so output stays useful while protected data remains within the organization's control. Policies are defined by data category and applied automatically: mask, redact, warn, or block. Every interaction is logged with the user, model, policies applied, and violations detected, so compliance is evidenced rather than reconstructed. Single-tenant architecture, role-based access control, and SSO. Built for financial services, banking, healthcare, insurance, education, government, and life sciences.

About

Proofpoint AI Security is a unified platform designed to help enterprises govern, monitor, and protect the use of AI systems, large language models, and autonomous agents across the organization. It provides visibility into both sanctioned and unsanctioned AI usage, enabling security teams to discover shadow AI tools, observe prompts and responses, and understand how AI interacts with sensitive data in real time. It applies intent-based detection and behavioral analysis to identify anomalies, prompt injection attempts, and risky interactions, while enforcing policies directly during runtime to prevent data leakage and misuse. It reconstructs full AI transactions, from user input to agent actions and outcomes, giving organizations complete traceability and audit readiness. With controls that extend across endpoints, browsers, and AI agent connections, it enables granular access governance and ensures that AI systems only access and share appropriate information.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Security and compliance leaders at regulated organizations who need employees using AI productively without exposing protected data.

Audience

Enterprise security leaders and IT teams who need to control, monitor, and secure AI tools and agents across their organization

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Per-user subscription with unlimited access to every supported model. Typically 40 to 60 percent below ChatGPT Enterprise, Claude Teams, or Microsoft Copilot subscriptions. Pricing available on request.
Free Version Not Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

Liminal
United States
www.liminal.ai/

Company Information

Proofpoint
United States
www.proofpoint.com/us/platform/ai-security

Alternatives

Alternatives

Categories

Categories

AI Security Supported
AI Usage Control Supported

Artificial Intelligence Features

Chatbot Supported
For eCommerce Not Supported
For Healthcare Supported
For Sales Supported
Image Recognition Not Supported
Machine Learning Not Supported
Multi-Language Supported
Natural Language Processing Supported
Predictive Analytics Not Supported
Process/Workflow Automation Supported
Rules-Based Automation Supported
Virtual Personal Assistant (VPA) Not Supported

Integrations

AWS AI Services Supported
Anthropic Supported
Dropbox Supported
Google Drive Supported
Google Workspace Supported
IBM QRadar SIEM Supported
Microsoft 365 Supported
Microsoft Entra ID Supported
Microsoft OneDrive Supported
Microsoft Sentinel Supported
Microsoft SharePoint Supported
Model Context Protocol (MCP) Not Supported
Notion Supported
Okta Supported
OneLogin Supported
Perplexity Supported
Slack Supported
Snowflake Supported
Splunk Enterprise Security Supported
Sumo Logic Supported

Integrations

AWS AI Services Not Supported
Anthropic Not Supported
Dropbox Not Supported
Google Drive Not Supported
Google Workspace Not Supported
IBM QRadar SIEM Not Supported
Microsoft 365 Not Supported
Microsoft Entra ID Not Supported
Microsoft OneDrive Not Supported
Microsoft Sentinel Not Supported
Microsoft SharePoint Not Supported
Model Context Protocol (MCP) Supported
Notion Not Supported
Okta Not Supported
OneLogin Not Supported
Perplexity Not Supported
Slack Not Supported
Snowflake Not Supported
Splunk Enterprise Security Not Supported
Sumo Logic Not Supported
Claim Liminal and update features and information
Claim Liminal and update features and information
Claim Proofpoint AI Security and update features and information
Claim Proofpoint AI Security and update features and information