Pillar Security vs Prompt Security
A side-by-side comparison of Pillar Security and Prompt Security, two Security tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
Pillar Security
SecurityDiscover, govern, and secure the AI agents across your organization.
View Pillar SecurityPrompt Security
SecurityRuntime security for enterprise GenAI: shadow-AI visibility, data-leak and prompt-injection defense.
View Prompt SecurityAt a glance
| Attribute | Pillar Security | Prompt Security |
|---|---|---|
| Category | Security | Security |
| Pricing | PAID | PAID |
| License | Proprietary | Proprietary |
| Deployment (differs) | Cloud | Hybrid |
| Platforms (differs) | Web, API | Web, API, Browser extension |
| Model support | Model-agnostic | Model-agnostic |
| Vendor (differs) | Pillar Security | Prompt Security (SentinelOne) |
The honest brief
Pillar Security
Covers the whole AI lifecycle — discovery and supply-chain mapping, agentic red-teaming, and runtime guardrails — not just input/output filtering.
- End-to-end AI lifecycle coverage
- Agentic red-teaming + runtime guardrails
- Maps AI use across code, SaaS, endpoints
- Gartner 2026 Guardian Agents vendor
- Enterprise sales; no public pricing
- Not open source
- Aimed at orgs, not individuals
- Young company (founded 2023)
Prompt Security
Covers both employee GenAI use (shadow-AI visibility) and homegrown LLM apps in one runtime layer — now backed by SentinelOne.
- Real-time data-leak prevention
- Blocks prompt-injection attacks
- Browser-extension and API coverage
- Part of SentinelOne Singularity platform
- Enterprise, paid-only pricing
- Roadmap tied to SentinelOne integration
- Heavier than a single-purpose API guard