Updated Apr 24, 2026
Score 33
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Prompt Security

Ranked #352 of 1,000+ cybersecurity companies
Profile
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INITIALIZING DATA STREAM...

Overview

Acquired By
SentinelOne
Legal Name
Prompt Security Inc.
Founded
2023
Crunchbase Rank
#6216

Embrace AI safely and securely

Prompt Security, a SentinelOne company, provides an end-to-end Generative AI security platform that inspects prompts and model outputs to prevent data exposure, block harmful content, and defend against AI-specific attacks, while giving enterprises visibility and governance to adopt GenAI safely and at scale across employee tools and customer-facing products.

Industries
Network Management SoftwareComputer and Network SecurityCybersecurityArtificial Intelligence & Machine Learning
Type
Privately Held
Social Media
linkedintwitter

Company Size

Employees
 
47
Range11–50 employees
110K+

Headquarters

New York, NY

Followers

 
15,133

Press Coverage

DateArticlePublisher
Nov 6, 2025SentinelOne CEO Tomer Weingarten: Security Vendors ‘Missing’ The Mark On AgenticCRN
Nov 5, 20255 Big SentinelOne AI Announcements At OneCon 2025CRN
Oct 30, 2025State of AI Q3’25 ReportCB Insights
Oct 23, 2025Agentic AI in Cybersecurity Market Worth $227+ Billion by 2032: Threat Detection & Response to Account for Nearly Half of Revenue Shares, by ApplicationResearch and Markets
Sep 18, 2025SentinelOne Continues to Sharpen Its AI EdgeThe Motley Fool
Sep 9, 2025Transcript : F5, Inc. Presents at Goldman Sachs Communacopia + Technology Conference 2025, Sep-09-2025 11MarketScreener
Sep 9, 2025SentinelOne to Acquire Observo AI in $225 Million DealSecurity Week
Aug 30, 2025SentinelOne (S) to Acquire Prompt Security in $250M DealYahoo! News
Aug 29, 2025SentinelOne Sparks Takeover Speculation With Strong Outlook And AI DifferentiationBenzinga.com
Aug 19, 2025Chamath is SPACSourcery

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Specialties

GenAI SecurityGenerative AI SecurityLLM SecurityShadow AI ProtectionPrompt Injection ProtectionAI Security

Categories

Artificial Intelligence (AI)Cyber SecurityGenerative AI

Product

NameDescription
Prompt for EmployeesA solution that enables employees to use Generative AI tools securely by preventing Shadow AI, data privacy breaches, and regulatory risks.
Prompt for Homegrown AI AppsA security solution that protects internally developed Generative AI applications from prompt injection, data leaks, and harmful outputs.
Prompt for AI Code AssistantsA service that secures AI-powered code assistants by preventing exposure of sensitive data and intellectual property during software development.
MCP GatewayA platform providing real-time visibility, control, and policy enforcement over Model Context Protocol (MCP) servers and interactions within AI systems.
GenAI Red TeamingA service that simulates adversarial attacks on Generative AI applications to identify vulnerabilities and security risks.
Prompt FuzzerAn open-source interactive tool for assessing vulnerabilities in Generative AI applications by simulating various prompt-based attacks.