Prompt Security envisions a future where enterprises can harness the full transformative potential of Generative AI without compromising safety or control. We exist to safeguard the critical intersection between advanced AI technologies and operational security, addressing the unique vulnerabilities of AI that traditional methods overlook.
Built on cutting-edge AI and cybersecurity expertise, our platform delivers real-time visibility, rigorous policy enforcement, and proactive risk mitigation, empowering organizations to confidently integrate AI into their workflows. Our mission is to enable a secure ecosystem where innovation and trust coexist, creating new standards for AI adoption at scale.
By pioneering tailored security solutions for Generative AI, we are shaping a future where AI-driven capabilities are universally accessible, resilient, and transparent—helping enterprises unlock AI’s promise while mitigating emerging risks across industries globally.
Our Review
We've been tracking Prompt Security since they emerged from stealth, and honestly, their timing couldn't have been better. While everyone was rushing to deploy ChatGPT and Claude across their organizations, these folks were quietly building the security layer that most companies didn't even know they needed.
The Problem They Actually Solved
Here's what caught our attention: Prompt Security didn't just build another cybersecurity tool and slap "AI" on it. They tackled the messy reality that traditional security solutions are basically blind to AI interactions. Think about it — your firewall can't see a prompt injection, and your endpoint protection won't catch someone accidentally sharing customer data with ChatGPT.
Their approach is refreshingly practical. Instead of trying to block AI entirely (good luck with that), they built a system that watches every interaction in real-time, maintains searchable logs, and can actually coach users when they're about to do something risky.
What Made Us Take Notice
The founder credentials here are pretty impressive. Itamar and Lior aren't just another pair of startup founders — they've got serious street cred from the Israeli Defense Forces, Check Point, and Orca Security. Lior's 25+ cybersecurity patents don't hurt either.
But what really sold us was their customer list. When you see The New York Times, Elastic, and multiple Fortune 500 companies trusting your security platform, that's not just good marketing — that's validation from organizations that can't afford to get AI security wrong.
The Acquisition That Makes Perfect Sense
SentinelOne's acquisition of Prompt Security in 2025 feels like one of those "of course" moments. We've watched countless companies struggle to bolt AI security onto existing platforms, but this integration actually makes strategic sense.
For enterprises already using SentinelOne, getting real-time AI visibility and control without switching vendors is a no-brainer. It's the kind of move that suggests both companies understood where the market was heading before everyone else caught up.
Features
Real-time inspection of every AI interaction to block threats such as prompt injections, jailbreaks, and malicious manipulations without impacting user latency
Policy-based controls for data redaction, sensitive information tokenization, blocking risky prompts, and inline user coaching
Lightweight agent and browser extensions to discover sanctioned and unsanctioned AI tools used by employees
Live, searchable inventory of AI prompt and response logs for audit and compliance
Model-agnostic support for major LLM providers and self-hosted models via SaaS or on-premises deployment
MCP Gateway monitoring AI application calls with risk scoring and enforcement actions
FAQs
Ploy was founded in 2024.
The Platform for AI Security Prompt Security, a SentinelOne Company, enables enterprises to benefit from the adoption of Generative AI while protecting from the full range of risks to their applications, employees and customers. At every touchpoint of Generative AI in an organization — from AI tools used by employees to GenAI integrations in customer-facing products — Prompt inspects each prompt and model response to prevent the exposure of sensitive data, block harmful content, and secure against GenAI-specific attacks. The solution also provides leadership of enterprises with complete visibility and governance over the AI tools used within their organization. Prompt empowers organizations to adopt AI securely and at scale.
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