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What is Proofpoint AI Security?

Proofpoint AI Security is a comprehensive solution designed to support organizations in overseeing, monitoring, and protecting the implementation of AI technologies, such as large language models and autonomous agents. This platform provides visibility into both sanctioned and unsanctioned AI activities, enabling security teams to detect unauthorized AI tools, monitor prompts and responses, and evaluate AI interactions with confidential data in real-time. By leveraging intent-based detection and behavioral analysis, it efficiently identifies anomalies, prompt injection attempts, and potentially harmful interactions, while also enforcing operational policies to prevent data breaches and misuse. Additionally, it reconstructs detailed AI transactions from the user's initial query to the subsequent actions and outcomes generated by the agents, ensuring that organizations retain full traceability and are ready for audits. Its functionalities encompass endpoints, web browsers, and AI agent links, promoting stringent access governance that ensures AI systems only utilize and share necessary information. This comprehensive control not only strengthens the enterprise's security posture but also fosters a proactive approach as organizations adapt to the evolving landscape of AI system integration, creating a safer digital environment overall.

What is Liminal?

Liminal is a secure AI enablement platform that becomes the place AI happens inside a regulated organization. Employees reach models from Anthropic, OpenAI, Google and other providers through one governed interface, and protection is applied inside the prompt before anything leaves the organization. That design answers a tradeoff most organizations are stuck in. Restrict AI access and employees route around it, taking the exposure somewhere nobody can see. Allow open access and regulated information flows into third-party systems with no record of what went where. Liminal makes the compliant path the convenient one, so there is nothing to route around. Protection happens inside the prompt. Before text leaves the organization, sensitive terms are recognized and handled according to rules the organization defines by data category: replaced with tokens, removed entirely, flagged for the user, or stopped outright. Tokens are swapped back when the response returns, so the employee reads something coherent while the provider never receives the underlying information. Nothing has to be scrubbed by hand. Model choice stays open. Policy-based routing directs traffic without anyone configuring controls provider by provider, and there are no separate contracts or security reviews for each vendor added. Everything is recorded as it happens: which person, which model, which rules fired, what was caught. Auditors and examiners get evidence produced at the moment of the interaction rather than assembled afterward, and the same records can feed existing security tooling so AI activity sits alongside everything else being reviewed. Internal systems connect through MCP, letting people bring real organizational context into their work without copying data into unmanaged tools. Existing permissions carry through. Infrastructure is single-tenant. Authentication runs through SSO with role-based authorization. Organizations in banking, insurance, healthcare, education, g

Media

Media

Integrations Supported

Model Context Protocol (MCP)

Integrations Supported

AWS AI Services
Amazon Web Services (AWS)
Dropbox
Google
Google Drive
IBM QRadar SIEM
Microsoft 365
Microsoft Entra ID
Microsoft OneDrive
Microsoft Outlook
Microsoft Sentinel
Microsoft SharePoint
OneLogin
OpenAI
Perplexity
Ping Identity
Slack
Snowflake
Splunk Enterprise Security

API Availability

API Availability

Pricing Information

Pricing not provided

Pricing Information

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.

Supported Platforms

SaaS

Supported Platforms

SaaS
Android
iPhone
iPad
Chromebook

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Proofpoint

Company Location

United States

Company Website

www.proofpoint.com/us/platform/ai-security

Company Facts

Organization Name

Liminal

Company Location

United States

Company Website

www.liminal.ai/

Categories and Features

Agentic Cybersecurity

Not specified

AI Security

Not specified

AI Usage Control

Not specified

Shadow AI Detection

Not specified

Categories and Features

Artificial Intelligence

Chatbot
For Healthcare
For Sales
Multi-Language
Natural Language Processing
Process/Workflow Automation
Rules-Based Automation

Generative AI

Not specified

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