CISO Tribune

Vendor comparison · 2 companies

Prompt Security vs Symmetry Systems

Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. Symmetry Systems sells a Data + AI Security Platform that discovers, classifies, protects, and monitors sensitive data. CISO Tribune files both under Workforce AI usage security. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Up to four companies side by side.

  • Prompt Security
  • Symmetry Systems
Prompt Security vs Symmetry Systems: Products, Customers and Funding Compared
Prompt SecurityPrompt Security offers protection for both employee use of AI tools and the apps an organization builds.prompt.securitySymmetry SystemsSymmetry Systems sells a Data + AI Security Platform that discovers, classifies, protects, and monitors sensitive data.symmetry-systems.com
What it sells
  • Prompt Fuzzer[4]An open source tool for AI vulnerability assessment.
  • DataGuard[1][8]A data security product from Symmetry Systems.
  • DataEnforce[1][4]Remediates misconfigurations, revokes excess permissions, and enforces policy.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
2023[1]Not stated on its pages
Ownership and funding
Owned by SentinelOne since 2025[3][7][8][10]Owned by Zscaler
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[10]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, Symmetry Systems sells to federal agencies and contractors that need data discovery, classification, monitoring and reporting across cloud and on-premises environments. Symmetry Systems describes an air-gapped DSPM for defense, federal and healthcare environments. Symmetry Systems runs a partner program for managed security services providers. Symmetry Systems offers separate instances per region, and a deployment where classification compute runs inside the customer's VPC or on-prem network. Symmetry Systems offers a managed service for data security.
Last verified
September 27, 2026October 23, 2026

Where they overlap

  • Prompt Security and Symmetry Systems are both filed under Workforce AI usage security.

Where they differ, field by field

  • Prompt Security's primary category is AI firewalls and guardrails; Symmetry Systems's is Data security posture management.
  • Prompt Security is also filed under AI model and agent security. Symmetry Systems is also filed under Non-human identity security and AI governance.
  • Prompt Security lists Prompt Fuzzer. Symmetry Systems lists DataGuard and DataEnforce.
  • Prompt Security was founded in 2023.
  • Prompt Security is owned by SentinelOne, since 2025. Symmetry Systems is owned by Zscaler.

What it sells: Prompt Security

What Prompt Fuzzer does[4]
Prompt Fuzzer is listed under AI Security Tools on the Prompt Security site. The site describes it as an open source tool for AI vulnerability assessment.

What it sells: Symmetry Systems

What DataEnforce does[1][4]
DataEnforce automatically remediates misconfigurations, revokes excess permissions, and enforces policy. DataEnforce does this without requiring a separate DLP or PAM tool.

Questions about Prompt Security and Symmetry Systems

What do Prompt Security and Symmetry Systems sell?
Prompt Security sells Prompt Fuzzer. Symmetry Systems sells DataGuard and DataEnforce.
Are Prompt Security and Symmetry Systems in the same category?
They share Workforce AI usage security. Prompt Security's primary category is AI firewalls and guardrails and Symmetry Systems's is Data security posture management.
When were Prompt Security and Symmetry Systems founded?
Prompt Security was founded in 2023.
Who owns Prompt Security and Symmetry Systems?
Prompt Security is owned by SentinelOne, since 2025. Symmetry Systems is owned by Zscaler.
Who are Prompt Security and Symmetry Systems sold to?
From its own pages, Symmetry Systems sells to federal agencies and contractors that need data discovery, classification, monitoring and reporting across cloud and on-premises environments.

About Prompt Security

Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. Prompt Security continuously tracks prompts per day in organizations of 500 to 1,000 employees.[4][5]

Prompt Security holds that securing agentic AI is fundamentally different from securing traditional software. Prompt Security states that agents act autonomously, call tools and reason over untrusted input, so prompt injection, identity and runtime behavior have to be governed in real time and not only at the perimeter.

Prompt Security provides a security skill suite for OpenClaw, NanoClaw and Hermes agents.[6]

Prompt Security provides a tool that tracks and analyzes OpenClaw deployments across an organization. Prompt Security provides a tool that tests and hardens a system prompt against dynamic LLM-based attacks.[4][9]

Prompt Security publishes news, research, tools and analysis for security teams responding to AI threats. Prompt Security describes an AI gateway as a centralized layer between an organization's users or applications and the AI models or services they call. An AI gateway, as Prompt Security describes it, lets security teams monitor, control and secure that traffic from one place instead of instrumenting every application separately.[4]

Prompt Security curates an interactive, continuously updated directory of 471 companies building security for agentic AI, organized across 14 functional categories. Both pure-play startups and dedicated AI-security lines from larger vendors are in scope for the Prompt Security directory. Entries in the Prompt Security directory are compiled from vendor websites, product documentation, funding announcements, public company registries and analyst coverage. Placement in the Prompt Security directory reflects publicly stated capabilities, not vendor marketing tiers. Category definitions and threat coverage in the Prompt Security directory are mapped against established, independent frameworks for AI and LLM security. The full dataset behind the Prompt Security directory is open and machine-readable.[2][4][5][6][9]

Prompt Security on the record

Sources

Prompt Security full record

  1. [1]Prompt security partners with f5 to secure genai applications with a firewall for ai 302131373Prompt Security via PR Newswire · prnewswire.com · published April 30, 2024 · Tier A
  2. [2]Securing ai promptSentinelOne · sentinelone.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Sentinelone completes acquisition of prompt securitySentinelOne via The Globe and Mail · theglobeandmail.com · published September 5, 2025 · Tier A
  4. [4]Prompt Security | From SentinelOnePrompt Security · undated page, accessed October 27, 2026 · Tier A
  5. [5]AI Security | AI Glossary | Prompt SecurityPrompt Security · undated page, accessed October 27, 2026 · Tier A
  6. [6]ClawSec: A Security Skill Suite for OpenClaw AgentsPrompt Security · undated page, accessed October 27, 2026 · Tier A
  7. [7]AI Security Startups Map — Agentic AI Vendors by CategoryPrompt Security · undated page, accessed October 27, 2026 · Tier A
  8. [8]About this Map & Methodology — AI Security Startups MapPrompt Security · undated page, accessed October 27, 2026 · Tier A
  9. [9]OneClaw DashboardPrompt Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Prompt Security Pros and Cons | User Likes & DislikesG2 · undated page, accessed November 10, 2026 · Tier C

Symmetry Systems full record

  1. [1]symmetry-systems.comSymmetry Systems · symmetry-systems.com · undated page, accessed October 23, 2026 · Tier A
  2. [2]Symmetry systems launches symmetry aiguardSymmetry Systems · symmetry-systems.com · published February 25, 2026 · Tier A
  3. [3]Data-Centric Security Roadmap Template for Modern CISO'sSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  4. [4]Symmetry Systems - The Data+AI Security Company.Symmetry Systems · undated page, accessed November 10, 2026 · Tier A
  5. [5]Data Security Posture Management Solution - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  6. [6]Data Security Posture Management (DSPM) - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  7. [7]Zero Trust and Data Security Posture Management (DSPM) - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  8. [8]Security Compliance Statement - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  9. [9]Data Security Posture Management as a Service - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  10. [10]Symmetry for Managed Security Services Providers - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A
  11. [11]How DataGuard helps with FedRAMP compliance - Symmetry SystemsSymmetry Systems · undated page, accessed November 10, 2026 · Tier A

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