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Vendor research

Prompt Security / SentinelOne

Review what this vendor says publicly, the security topics those statements may support, what remains unverified, and factual company context. This is not an assessment of product effectiveness or fit.

Use-case context

How this vendor relates to the selected use case

Related research availableBack to use case →

These links show approaches associated with this vendor. The relationship label describes how the approach maps to the use case—not product effectiveness, complete requirement coverage, or fit.

Employee AI and data4 related approaches

Company scale

Established
?EstablishedA provider with at least $1B in annual revenue, at least 1,000 employees, or backing from an established owner.This is a company-maturity signal, not a product-quality rating.

A descriptive band derived from retained public revenue, workforce, ownership, or funding signals.

Company scale is separate from product features, effectiveness, and suitability.
  • $1B annual revenue (2026-01-31)
  • $23M known funding
  • 11-50 employees
  • Founded 2023

Company context

Public-company subsidiary / product line under SentinelOne (NYSE: S)

SentinelOne positions Prompt Security as part of Securing AI across employee prompts, custom apps, agents, data, infrastructure, endpoint, cloud, identity, and SecOps

Research coverageCounts describe available public research, not product quality.View details
Vendor statements
19 records
Source-checked records
16
Evaluation requirements
19 in this research model
Unresolved requirements
3

Company intelligence

Who is behind the product

Company facts provide evaluation context. Each signal is kept separate because tenure, workforce, funding, and hiring answer different questions.

Founded2023
HeadquartersTel Aviv, Israel; U.S. presence commonly listed in New York
OwnershipPublic-company subsidiary / product line under SentinelOne (NYSE: S)
Employees11-50
Capital and scaleIndependent company

Prompt Security

Known funding
$23M

Series A · $18M · 2024-11-20

Current owner annual revenue
$1B

SentinelOne, Inc. (S) · period ended 2026-01-31 · filed 2026-03-19

Operating scale
SentinelOne positions Prompt Security as part of Securing AI across employee prompts, custom apps, agents, data, infrastructure, endpoint, cloud, identity, and SecOps
Backing context
$5M seed led by Hetz Ventures; $18M Series A led by Jump Capital with Hetz Ventures, Ridge Ventures, Okta, and F5 participation; acquired by SentinelOne for cash and stock
Named investors

Jump Capital · Hetz Ventures · Ridge Ventures · Okta Ventures · F5

Founders and leadership2 people listed
  • Itamar Golan

    Co-Founder & CEO before acquisition

    Status not confirmed
  • Lior Drihem

    Co-Founder & CTO before acquisition

    Status not confirmed
Operating signalsRead each signal separately

There is no combined company rating. The company-scale label uses stated size thresholds; product features and effectiveness require separate evidence.

Company tenure
2023
Workforce scale
11-50
Hiring activity
Not displayed

A current count requires a retained, clickable source URL.

Core company facts have supporting public sources.

Company sources and research limits8 linked public sources

Only company facts supported by retained public sources are shown. Missing values remain unknown, and company scale does not establish product effectiveness.

Company sourceSentinelOne acquisition announcementSentinelOne announced a definitive agreement to acquire Prompt Security for GenAI and agent security.Company sourceSentinelOne Prompt Security pageSentinelOne positions Prompt Security as AI usage protection across prompts, models, and responses.Company sourceSentinelOne endpoint security pageSentinelOne describes Singularity Endpoint as AI-powered protection, detection, response, and identity-aware endpoint security.Company sourcePrompt Security seed announcementPrompt Security announced $5M seed funding led by Hetz Ventures with Four Rivers and angel participation.Company sourcePrompt Security Series A announcementPrompt Security announced $18M Series A led by Jump Capital with Hetz, Ridge, Okta, and F5 participation.Company sourcePrompt Security company pagePrompt's about page lists founders and startup backers.Company information sourcePrompt Security LinkedIn company profileSupports the company facts shown in this profile.Regulatory filing10-K annual filingSentinelOne, Inc. (S) · period ended 2026-01-31

Solution areas

These areas describe how the vendor approaches enterprise AI security. They do not establish product quality or fit.

AI data protectionCore product focusAI application runtime protectionCore product focusAction-taking agent safeguardsCore product focusEndpoint AI application controlsRelated coverageBrowser and extension controlsRelated coverage

Buyer context

  • For existing SentinelOne EDR and Singularity Endpoint customers, treat Prompt Security as a platform-extension candidate and confirm SKU, console, data-retention, and rollout boundaries.
  • Public SentinelOne materials connect endpoint, cloud, identity, and AI telemetry, which may reduce investigation and procurement friction for SentinelOne-installed accounts.
  • Do not assume EDR alone solves AI security; Prompt's value is browser, desktop, application programming interface (API), Model Context Protocol (MCP), and agent runtime control layered alongside endpoint protection.

Related frameworks

Where public vendor statements relate to framework requirements

11 related frameworks · expand when needed
These links show related requirements for further review. They do not establish framework compliance or control implementation. Open the full framework crosswalk →
Current referenceCIS Critical Security Controls
Requirements with public support
15
Related requirements
11
References
58
Review related requirements →
Current referenceCSA AI Controls Matrix
Requirements with public support
15
Related requirements
14
References
71
Review related requirements →
Current referenceISO/IEC 42001
Requirements with public support
15
Related requirements
12
References
35
Review related requirements →
Current referenceMITRE ATLAS
Requirements with public support
15
Related requirements
12
References
71
Review related requirements →
Current referenceNIST AI RMF Playbook
Requirements with public support
15
Related requirements
13
References
39
Review related requirements →
Current referenceNIST Cybersecurity Framework 2.0
Requirements with public support
15
Related requirements
12
References
39
Review related requirements →
Informative referenceOWASP Agentic AI Security Solutions Landscape
Requirements with public support
15
Related requirements
12
References
31
Review related requirements →
Informative referenceOWASP GenAI Security Solutions Landscape
Requirements with public support
15
Related requirements
11
References
27
Review related requirements →
Current referenceOWASP Top 10 for Agentic Applications
Requirements with public support
15
Related requirements
13
References
31
Review related requirements →
Current referenceOWASP Top 10 for LLM Applications
Requirements with public support
15
Related requirements
13
References
25
Review related requirements →
Commercial Metadata
Requirements with public support
3
Related requirements
3
References
3
Review related requirements →

Evaluation questions

What to verify beyond public claims

These questions come from security requirements with some public support. Use them as starting points for demonstrations, documentation review, customer references, or a buyer-observed pilot.

  1. 01
    Unapproved AI use discovery

    An unmanaged AI app used by a test user appears in discovery inventory with user, app or domain, and timestamp.

  2. 02
    Unapproved AI use discovery

    The test user's AI usage activity can be filtered or exported with AI-specific context.

  3. 03
    Approved AI usage monitoring

    Approved AI workspace activity appears with user, workspace or tenant, model or provider, and timestamp.

  4. 04
    Approved AI usage monitoring

    Prompt, model, or admin activity can be exported or correlated for the selected approved AI platform.

  5. 05
    Controls for unapproved AI use

    A policy blocks, coaches, redirects, or contains a test interaction with an unapproved AI destination.

  6. 06
    Controls for unapproved AI use

    The control event records policy reason, user, destination, action, and timestamp.

  7. 07
    Sensitive-data protection for generative AI

    Sensitive prompt, response, or file test data is detected and classified during an AI interaction.

  8. 08
    Sensitive-data protection for generative AI

    A policy redacts, blocks, coaches, or records the sensitive data event before it leaves the approved path.

Detailed security-requirement research18 evaluation items · supporting evidence and open research are shown separatelyExpand
Security requirementPublic supportRelated frameworksWhat to verify
AI-feature discovery in business applications

Inventory software as a service (SaaS) applications that embed AI features, expose enterprise data to AI capabilities, or create AI-driven data movement.

No supporting claim found
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A software as a service (SaaS) app with an embedded AI feature appears in the software as a service (SaaS) AI inventory with app, provider, and feature context.

Browser and business-application controls

Apply session-level controls in browser and software as a service (SaaS) workflows, including uploads, downloads, copy/paste, sharing, and identity-aware access decisions.

Strong public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A session-level policy controls upload, download, copy, paste, sharing, or form submission in a browser or software as a service (SaaS) workflow.

Generative AI application security

Protect enterprise-built large language model (LLM) applications, retrieval-augmented generation (RAG) systems, prompts, application programming interfaces (APIs), model calls, tools, and production runtime behavior.

Strong public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A test large language model (LLM) application event records prompt, application programming interface (API), model, retrieval, or tool interaction context.

AI governance, risk, and compliance

Inventory AI systems and owners, translate policy and regulatory obligations into governed workflows, assess risk, manage approvals and exceptions, and retain audit evidence across the AI lifecycle.

Strong public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A test AI system is registered with owner, intended use, risk tier, lifecycle state, and applicable obligations.

AI assurance and adversarial testing

Test models, applications, retrieval-augmented generation (RAG) systems, and agents before release and continuously thereafter using adversarial probes, evaluation suites, attack simulation, and security release gates.

Strong public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A controlled test campaign exercises an AI model, application, or agent against named AI attack classes.

AI model and supply-chain security

Discover, inventory, scan, validate, and monitor models, datasets, model artifacts, registries, dependencies, and AI development assets for tampering, unsafe serialization, provenance gaps, or malicious content.

Limited public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A test model or AI artifact appears in inventory with origin, version, hash or provenance, and deployment context.

AI gateway, tool-connection, and runtime controls

Mediate model, agent, tool, application programming interface (API), connector, and Model Context Protocol (MCP) traffic through an enforcement point that applies identity-aware policy, content controls, routing, rate limits, and auditable allow or deny decisions.

Strong public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A model, agent, tool, or Model Context Protocol (MCP) request passes through a named policy enforcement point.

Non-human identity and service-account security

Inventory, least privilege, credential hygiene, monitoring, and lifecycle management for non-human identities, workloads, service accounts, application programming interface (API) keys, and machine credentials.

Limited public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A test service account, agent identity, or non-human identity appears in inventory with owner and privileges.

AI agent identity and permissions

Register AI agents as accountable identities, bind them to owners and delegating users, authorize task- and tool-level access, issue short-lived credentials, review access, and revoke or suspend agent authority.

Limited public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A test agent is registered with a unique identity, accountable owner, purpose, and permitted resources.

AI coding-agent and workstation security

Discover and govern AI coding agents, integrated development environment (IDE) assistants, command-line agents, skills, hooks, extensions, Model Context Protocol (MCP) tools, filesystem access, commands, network activity, secrets, and software-supply-chain actions on developer workstations and build environments.

Strong public support
NIST AI RMF PlaybookNIST Cybersecurity Framework 2.0CIS Critical Security ControlsISO/IEC 42001OWASP GenAI Security Solutions Landscape

A test coding agent and its skills, hooks, extensions, or Model Context Protocol (MCP) tools appear in an attributable inventory.

Licensing model

Publicly discoverable commercial model such as per user, per seat, per app, per token, per integration, or enterprise platform license.

No supporting claim found
Commercial MetadataCSA AI Controls Matrix

The vendor can map the sourced commercial model to per-user, per-seat, per-app, per-token, per-integration, or platform packaging.

Public sources

Vendor statements and quoted evidence

Showing the first 6 of 19 source records. Open additional records only when needed.

Open all vendor evidence →
AI governance, risk, and complianceSource checkedStrong public support for this requirement

Prompt Security claims enterprise AI and Model Context Protocol (MCP) discovery, risk scoring, policy enforcement, searchable interaction logs, role-based controls, compliance policy, drift monitoring, and human oversight for agentic systems.

Get complete, searchable logs of every interaction for risk management.
AI assurance and adversarial testingSource checkedStrong public support for this requirement

Prompt Security claims automated preproduction and continuous red teaming for prompt injection, data exposure, privilege escalation, jailbreaks, unsafe agent behavior, drift, and other AI-specific risks with evidence and remediation guidance.

Run pre-production red teaming, prioritize issues using risk scoring and evidence, and confidently ship production-ready AI applications.
AI model and supply-chain securitySource checkedLimited public support for this requirement

Prompt Security claims dynamic risk scoring of more than 13,000 Model Context Protocol (MCP) servers, vulnerability profiles, certification checks, shadow-server discovery, and agent skill integrity and drift checks.

MCP risk scoring, dynamically assessing over 13,000 MCP servers on GitHub to identify emerging threats.
AI gateway, tool-connection, and runtime controlsSource checkedStrong public support for this requirement

Prompt Security claims an AI and Model Context Protocol (MCP) Gateway that inspects requests, responses, prompts, templates, agent actions, and server interactions in real time with allow or block policy, threat intelligence, data loss prevention (DLP), and endpoint enforcement.

Inspecting every request and response in real time to protect sensitive data and information.
AI agent identity and permissionsSource checkedLimited public support for this requirement

Prompt Security claims granular policy by user, group, server, and action plus attribution of AI use, data sharing, agent responses, and Model Context Protocol (MCP) activity.

Allow/block by user, server, or action according to your security policy.
AI coding-agent and workstation securitySource checkedStrong public support for this requirement

Prompt Security claims endpoint and integrated development environment (IDE)-integrated governance for coding assistants, Model Context Protocol (MCP) servers, exposed commands, secrets, PII, generated code, prompt responses, and action-level policy across tools including Cursor and GitHub Copilot.

Fine-grained policies that determine which MCPs are allowed, which commands can be run, and under what circumstances.
Show 13 additional evidence records
AI cost and usage controlsNo supporting claim found

SentinelOne Prompt Security materials reviewed did not provide a public product claim for AI usage-cost attribution, token or spend metrics, budgets, chargeback, or cost-aware model routing.

No quoted source text is recorded for this claim.
Unapproved AI use discoverySource checkedStrong public support for this requirement

SentinelOne Prompt Security claims it inventories every AI tool and code assistant in use, including unapproved shadow AI.

Inventory every AI tool and code assistant in use, including unsanctioned shadow AI
AI-feature discovery in business applicationsNo supporting claim found

No public claim found for this capability.

No quoted source text is recorded for this claim.
Approved AI usage monitoringSource checkedLimited public support for this requirement

SentinelOne Prompt Security claims integration with AI code assistants such as GitHub Copilot and Claude Code for secure AI usage policy enforcement in development environments.

Yes. Prompt Security integrates with AI code assistants like GitHub Copilot and Claude Code to prevent secrets, credentials, and proprietary code from leaking into prompts, while enforcing secure AI usage policies across development environments.
Controls for unapproved AI useSource checkedStrong public support for this requirement

SentinelOne Prompt Security claims granular, role-based controls for who can use AI, how, and with what data.

Set granular, role-based controls for who can use AI, how, and with what data.
Sensitive-data protection for generative AISource checkedStrong public support for this requirement

SentinelOne Prompt Security claims it redacts sensitive data and enforces policies across 15,000+ AI services in real time.

Redact sensitive data and enforce policies across 15,000+ AI services in real time
Action-taking agent monitoringSource checkedStrong public support for this requirement

SentinelOne Prompt Security claims searchable audit logs for every agent action, decision, and enterprise system interaction.

Get a searchable audit log of every agent action, decision, and enterprise system interaction
Agent-to-agent communication securitySource checkedLimited public support for this requirement

Prompt Security claims runtime policy controls for Model Context Protocol (MCP) interactions, including allow or block decisions by user, server, and action.

Allow/block by user, server, or action
Non-human identity and service-account securitySource checkedLimited public support for this requirement

Prompt Security from SentinelOne claims visibility into agents and Model Context Protocol (MCP) servers plus least-privilege access enforcement for AI agents.

Enforce least-privilege access so agents operate only within their defined scope
Browser and business-application controlsSource checkedStrong public support for this requirement

Prompt Security claims it provides employees with visibility, security, and governance over AI tools usage.

Attain visibility, security and governance for AI tools usage
Generative AI application securitySource checkedStrong public support for this requirement

Prompt Security claims it blocks prompt injections, data leaks, and toxic large language model (LLM) content for homegrown generative AI apps.

Block prompt injections, data leaks and toxic LLM content
Licensing modelNo supporting claim found

No public claim found for this capability.

No quoted source text is recorded for this claim.
Approved AI platform contextSource checkedRelated public context only

SentinelOne positions AI security as connected with endpoint, cloud, identity, and AI telemetry, making Prompt Security a platform-extension candidate for existing Singularity Endpoint customers.

SentinelOne connects endpoint, cloud, identity, and AI telemetry so teams can see risk clearly without stitching tools together.