CISO Tribune

Vendor comparison · 2 companies

Pluto Security vs Prime Security

Pluto Security sells security for what people build with AI. Prime Security sells an AI security review platform designed for software development lifecycles. CISO Tribune files both under Software supply chain 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.

  • Pluto Security
  • Prime Security
Pluto Security vs Prime Security: Products, Customers and Funding Compared
Pluto SecurityPluto Security sells security for what people build with AI.pluto.securityPrime SecurityPrime Security sells an AI security review platform designed for software development lifecycles.primesec.ai
What it sells
  • Explorer[1]Discovers and maps the AI tools, agents and extensions in use across an organization's endpoints, cloud and SaaS.
  • Risk radar[1]Evaluates discovered AI tools and agents against a risk database to triage them.
  • Space Shield[1]Applies and enforces policies that control what AI tools and agents are permitted to do based on context.
  • Marketspace[1]Offers a curated catalog of vetted AI add-ons that employees can adopt.
  • Autonomous Design Reviews[1][4]AI agents review specs, architecture and data flows to uncover security risks before code is written.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Privately heldNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 13, 2026Pluto Security announced its emergence from stealth with $42 million in total funding and said it has over 40 enterprise customers.[7]
  • June 17, 2026Pluto Security launched Plutonium, a free, vendor-neutral security hub covering the AI assistant ecosystem.[6]
  • December 9, 2025Prime Security said it raised $20 million in early-stage funding to fuel go-to-market expansion and its Agentic Product Security Platform.[11]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • 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
From its own pages, Pluto Security sells mainly to security teams and CISOs who want to let employees use AI tools without blocking them. It names a Fortune 500 health insurance company among the kinds of customers quoted. Its about page describes protecting AI builders, developer tools, and business workspaces.Not written yet
Last verified
October 16, 2026November 9, 2026

Where they overlap

  • Pluto Security and Prime Security are both filed under Software supply chain security.

Where they differ, field by field

  • Pluto Security's primary category is Workforce AI usage security; Prime Security's is Application security posture management.
  • Pluto Security is also filed under AI model and agent security. Prime Security is also filed under Static application security testing and Breach simulation and automated pen-testing.
  • Pluto Security lists Explorer, Risk radar, Space Shield and Marketspace. Prime Security lists Autonomous Design Reviews.
  • Pluto Security is privately held.

What it sells: Prime Security

What Autonomous Design Reviews does[1][4]
Prime checks every design, scores every risk and validates every fix in code. Prime can produce a threat model and combines design-level analysis with actual code.

Questions about Pluto Security and Prime Security

What do Pluto Security and Prime Security sell?
Pluto Security sells Explorer, Risk radar, Space Shield and Marketspace. Prime Security sells Autonomous Design Reviews.
Are Pluto Security and Prime Security in the same category?
They share Software supply chain security. Pluto Security's primary category is Workforce AI usage security and Prime Security's is Application security posture management.
Who owns Pluto Security and Prime Security?
Pluto Security is privately held.
Who are Pluto Security and Prime Security sold to?
From its own pages, Pluto Security sells mainly to security teams and CISOs who want to let employees use AI tools without blocking them.
What have Pluto Security and Prime Security announced recently?
October 13, 2026: Pluto Security announced its emergence from stealth with $42 million in total funding and said it has over 40 enterprise customers. December 9, 2025: Prime Security said it raised $20 million in early-stage funding to fuel go-to-market expansion and its Agentic Product Security Platform.

About Pluto Security

Pluto Security sells security for what people build with AI. Pluto Security says it protects modern creation workflows, across AI builders, developer tools, and business workspaces, with visibility, risk understanding, and real-time guardrails.

Pluto Security describes the problem as one that security teams face when AI tools let everyone build fast. Its about page says security teams were forced to either block everything or accept the risk, and that Pluto offers a third way: let people build, while security stays in control. Its homepage says new tools, skills, plugins and extensions, combined with intent-based actions that execute in runtime, lead CISOs to either block or approve in bulk.[3]

The homepage names four problem areas.

Pluto Security says it protects every layer of the AI atmosphere: tools, supply chain, artifacts and runtime. Its homepage describes four connected capabilities: uncovering an organization's AI universe with wide context, triaging every discovery with Pluto's self-research risk database, enforcement through intent-based policies that adapt in real time, and a place for every safe, verified AI add-on that is curated by default.[1][3]

The homepage gives examples of use cases by team. Finance runs scripts with Cursor and approval is required for payment API access. For AI builders connecting MCP servers, trusted MCPs are allowed and the rest are quarantined. HR builds with Lovable while employee and company data is protected, and Sales uses AI agents for prospecting while unauthorized outbound actions are prevented.[3]

Pluto Security states that it offers visibility and risk understanding for AI-driven building activity, allowing security teams to monitor real-time guardrails across AI workflows and integrations.[4]

On company facts, Pluto says it is officially out of stealth, with $42 million in total funding. Pluto Security was founded by a team from Unit 8200, Microsoft, and Palo Alto Networks. Its about page says it is part of accelerators including AWS, CrowdStrike and NVIDIA.[1][3][5]

Pluto Security on the record

Sources

Pluto Security full record

  1. [1]pluto.securityPluto Security · pluto.security · undated page, accessed October 16, 2026 · Tier A
  2. [2]About Us - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  3. [3]Enabling CISOs to say YES - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  4. [4]What Is AI Security Posture Management & What Does It Do? - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  5. [5]Webinar - Still saying no to AI tools because of security risks? - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  6. [6]Introducing PlutoniumPluto Security · published June 17, 2026 · Tier A
  7. [7]Pluto Security Emerges From Stealth With $42M in Funding to Help Enterprises Secure AI AdoptionFinanceWire (Markets Insider) · published October 13, 2026 · Tier B

Prime Security full record

  1. [1]primesec.aiPrimeSec Inc. · primesec.ai · undated page, accessed November 9, 2026 · Tier A
  2. [2]Build vs Buy: Automating Security Design Reviews at Scale | Prime SecurityPrime Security · undated page, accessed November 10, 2026 · Tier A
  3. [3]Prime Security | Agentic Product Security PlatformPrime Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Prime Security Platform | AI Agents for Product SecurityPrime Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]About Prime Security | Agentic AI Security CompanyPrime Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]AI Security Code Reviews | Prime SecurityPrime Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]Supply Chain Security | Prime SecurityPrime Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]How MX Used Prime to Scale Product Security Without Adding HeadcountPrime Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]How Oscar Health Scaled Secure Development and Risk Prioritization Across EngineeringPrime Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]How ThoughtSpot Scaled Security Coverage and Confidence in a High-Velocity Engineering EnvironmentPrime Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Prime Security raises $20M early-stage funding to scale its agentic product security platform - SiliconANGLESiliconANGLE · published December 9, 2025 · Tier B

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