CISO Tribune

Vendor comparison · 2 companies

Prime Security vs Trail of Bits

Prime Security sells an AI security review platform designed for software development lifecycles. Trail of Bits sells security reviews and engineering services across application security, cryptography, blockchain, AI/ML, low-level systems, and software supply chain. CISO Tribune files both under Static application security testing and 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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  • Prime Security
  • Trail of Bits
Prime Security vs Trail of Bits: Products, Customers and Funding Compared
Prime SecurityPrime Security sells an AI security review platform designed for software development lifecycles.primesec.aiTrail of BitsTrail of Bits sells security reviews and engineering services across application security, cryptography, blockchain, AI/ML, low-level systems, and software supply chain.trailofbits.com
What it sells
  • Autonomous Design Reviews[1][4]AI agents review specs, architecture and data flows to uncover security risks before code is written.
  • Application Security[1][2][3]Code, cloud, and architecture review that finds the root cause and the fix for the whole bug class.
  • Blockchain[1][2][3]Review of every layer of a blockchain system, from smart contracts to nodes and bridges.
  • Cryptography[1][2][3]PhD-level cryptographers build and break real protocols.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • 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]
Not stated on its pages
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
Not written yetTrail of Bits describes review work for blockchain systems, covering smart contracts, nodes, and bridges. Trail of Bits describes security work on AI systems, from training data to deployed agent loops. Trail of Bits describes advising on the security challenges that come with advancing health research infrastructure.
Last verified
November 9, 2026October 19, 2026

Where they overlap

  • Prime Security and Trail of Bits are both filed under Static application security testing and Software supply chain security.

Where they differ, field by field

  • Prime Security's primary category is Application security posture management; Trail of Bits's is Security consulting and advisory.
  • Prime Security is also filed under Breach simulation and automated pen-testing. Trail of Bits is also filed under AI model and agent security.
  • Prime Security lists Autonomous Design Reviews. Trail of Bits lists Application Security, Blockchain and Cryptography.

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.

What it sells: Trail of Bits

What Blockchain does[1][2][3]
Trail of Bits reviews every layer of a blockchain system, from smart contracts to nodes and bridges, backed by Slither, Echidna, and Medusa. Trail of Bits maintains Slither, Echidna, and Manticore alongside the Building Secure Contracts guide.
What Cryptography does[1][2][3]
Trail of Bits employs PhD-level cryptographers who build and break real protocols, from zero-knowledge proofs and MPC to post-quantum migrations. Trail of Bits pulls cryptographers, compiler people, and systems engineers onto the same review.

Questions about Prime Security and Trail of Bits

What do Prime Security and Trail of Bits sell?
Prime Security sells Autonomous Design Reviews. Trail of Bits sells Application Security, Blockchain and Cryptography.
Are Prime Security and Trail of Bits in the same category?
They share Static application security testing and Software supply chain security. Prime Security's primary category is Application security posture management and Trail of Bits's is Security consulting and advisory.
Who are Prime Security and Trail of Bits sold to?
Trail of Bits describes review work for blockchain systems, covering smart contracts, nodes, and bridges.
What have Prime Security and Trail of Bits announced recently?
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 Prime Security

Prime Security sells an AI security review platform designed for software development lifecycles. Prime Agents learn an organisation's architecture, code and risk history. Prime Security describes one platform covering the SDLC before the code, in the code and after the code. Prime agents work autonomously inside the customer environment, mapping every application, policy, resource and data flow. Prime agents live inside the development lifecycle and understand designs, code, cloud and policies.[1][2][3][4]

Prime Security says AI agents, multiple stacks and complex development processes have created an attack surface that no existing security tool was built to handle. Prime Security states its aim as connecting architecture, code and cloud to find every exploitable attack vector before attackers do. Prime tracks every asset as it moves from design to deployment. Prime learns an organisation's architecture, past decisions and risk profile, and each review builds on the last one.[3][4][5]

Autonomous design reviews use AI agents to review specs, architecture and data flows to uncover security risks before code is written. Prime checks every design, scores every risk and validates every fix in code. Prime can produce a threat model, and Prime combines design-level analysis with actual code. Prime Security covers architecture reviews, threat modeling, documentation analysis, and security analysis tied to tickets and code changes. Prime finds vulnerabilities and logic flaws in AI-generated and human-written code. Prime checks every PR the moment it opens, whether a developer or an agent wrote it. Prime checks each pull request for approved auth flows, encryption methods, architecture patterns and framework requirements. Prime reviews every PR against the policies that apply to that repo, validates each finding and hands the agent the context to fix it. Prime logs every review, finding, validation and fix.[1][2][3][4][6]

Prime sets security guardrails for agents like Cursor and Claude Code, catching insecure code at the PR before it merges. Prime Security embeds security policies directly into AI coding workflows. Prime inventories every package in the dependency graph, direct and transitive, and matches it against known CVEs and the license policy. Prime identifies vulnerable packages accessible to attackers with proven attack paths. Exploitable findings arrive with the full attack path, and unreachable ones arrive marked as noise, with the reasoning attached. Prime checks every dependency against the license policy in the same scan. Prime runs continuous attack path analysis with source, architecture and controls. Prime maps how services talk, where data flows and how an attacker would chain it all together. Prime evaluates multi-step attacks the way an attacker plans them.[1][3][4][7]

Prime delivers a tailored fix wherever the work happens, with the PR, Slack or a Jira ticket for developers. For dev agents, Prime delivers context over MCP, so mitigation runs with no human in the loop. Prime proposes mitigations built for the codebase, delivers them to developers and agents and validates the fix landed in code. Agents run continuously across planning and development workflows without requiring custom engineering from the customer team. Prime integrates with Github, Gitlab, Claude Code, Cursor, Jira, Confluence, Google Drive, Azure DevOps, Linear, and Git Issues.[2][3][4]

Prime Security supports Product Security Engineers and Security Architects. MX adopted Prime Security. MX is a financial data platform that powers secure data access, analytics, and personalized money experiences for banks, fintechs, and financial institutions. Oscar Health adopted Agentic Security Architect from Prime to automate security reviews and proactively identify risk across all engineering work. Oscar Health is a healthcare technology company that combines digital experiences with health insurance services. ThoughtSpot adopted Agentic Security Architect from Prime to scale security reviews and threat modeling across its expanding engineering surface area. ThoughtSpot is an analytics platform that enables organizations to explore, analyze, and act on data at scale.[1][4][8][9][10]

Prime Security on the record

Sources

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

Trail of Bits full record

  1. [1]trailofbits.comTrail of Bits · trailofbits.com · undated page, accessed October 19, 2026 · Tier A
  2. [2]About · Trail of BitsTrail of Bits · undated page, accessed November 10, 2026 · Tier A
  3. [3]Services · Trail of BitsTrail of Bits · undated page, accessed November 10, 2026 · Tier A
  4. [4]Ruby Security Field Guide — Guide · Trail of BitsTrail of Bits · undated page, accessed November 10, 2026 · Tier A
  5. [5]Offchain Security Council Rotation · Trail of BitsTrail of Bits · undated page, accessed November 10, 2026 · Tier A

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