CISO Tribune

Vendor comparison · 2 companies

Lasso Security vs Pillar Security

Lasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection. Pillar Security sells one platform to discover, test, secure and govern every AI agent across an organization. CISO Tribune files both under AI firewalls and guardrails, AI model and agent security and 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.

  • Lasso Security
  • Pillar Security
Lasso Security vs Pillar Security: Products, Customers and Funding Compared
Lasso SecurityLasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection.lasso.securityPillar SecurityPillar Security sells one platform to discover, test, secure and govern every AI agent across an organization.pillar.security
What it sells
  • AI Security Platform[4]Covers discovery, AI risk assessment and runtime protection.
  • Agentic Endpoint[7][10]Protects the AI agents that run on employee machines.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
2023[2]Not stated on its pages
Ownership and funding
Privately heldOwned by Vanta
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • September 2, 2026Lasso Security launched an AI guardrail that runs on CPUs only and raised $30 million.[3]
  • November 9, 2026Vanta signed a definitive agreement to acquire Pillar Security, an AI security platform that protects AI agents across their lifecycle.[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, Lasso Security describes its AI Security Platform as built for enterprises. Lasso Security addresses security teams that own the AI attack surface, from agent discovery and adversarial testing to runtime enforcement. Lasso Security addresses enterprises whose staff use SaaS and web chatbots, local desktop agents and MCPs across every department.Not written yet
Last verified
November 2, 2026November 10, 2026

Where they overlap

  • Lasso Security and Pillar Security are both filed under AI firewalls and guardrails, AI model and agent security and Workforce AI usage security.

Where they differ, field by field

  • Lasso Security's primary category is AI firewalls and guardrails; Pillar Security's is AI model and agent security.
  • Pillar Security is also filed under AI governance.
  • Lasso Security lists AI Security Platform. Pillar Security lists Agentic Endpoint.
  • Lasso Security was founded in 2023.
  • Lasso Security is privately held. Pillar Security is owned by Vanta.

What it sells: Pillar Security

What Agentic Endpoint does[7][10]
Pillar deploys through an MDM and inventories the AI coding agents across a fleet: which agents run where, their versions, sandbox state and risk. Runtime Guardian sits in the agent's own pre-tool hook for Claude Code, Codex CLI and Cursor, and decides on every action before it runs. Pillar inventories local and remote servers across a fleet and scores each against a catalog of 23,000+ pre-analyzed servers.

Questions about Lasso Security and Pillar Security

What do Lasso Security and Pillar Security sell?
Lasso Security sells AI Security Platform. Pillar Security sells Agentic Endpoint.
Are Lasso Security and Pillar Security in the same category?
They share AI firewalls and guardrails, AI model and agent security and Workforce AI usage security. Lasso Security's primary category is AI firewalls and guardrails and Pillar Security's is AI model and agent security.
When were Lasso Security and Pillar Security founded?
Lasso Security was founded in 2023.
Who owns Lasso Security and Pillar Security?
Lasso Security is privately held. Pillar Security is owned by Vanta.
Who are Lasso Security and Pillar Security sold to?
From its own pages, Lasso Security describes its AI Security Platform as built for enterprises.
What have Lasso Security and Pillar Security announced recently?
September 2, 2026: Lasso Security launched an AI guardrail that runs on CPUs only and raised $30 million. November 9, 2026: Vanta signed a definitive agreement to acquire Pillar Security, an AI security platform that protects AI agents across their lifecycle.

About Lasso Security

Lasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection. Lasso Security offers protection for every AI agent an organization builds and deploys, wherever it runs. Lasso Security secures autonomous AI agents, LLM applications and agentic workflows from build-time through runtime. Lasso Security states that decentralized ownership has led to Shadow AI across the enterprise. Lasso Security states that security teams have zero visibility into the AI tools and agents that employees are using and creating. Lasso Security states that everyone from HR to Marketing is now using or building agents.[1][4][5][6]

Lasso discovers every agent and AI application across an environment, consolidates them into a single inventory and assesses risk across the agentic ecosystem. Lasso inventories AI components including models, MCP servers, delegated agents, databases, third-party tool connectors, identity boundaries and authorization policies. Lasso connects through native integrations with CI platforms and low code no code agent builder platforms such as Amazon Bedrock, Azure AI Foundry, Microsoft Copilot Studio, Google Vertex AI and Salesforce Agentforce. Lasso uses an agentless, read-only integration into CI pipelines and native integrations with cloud providers and third-party agent builder tools.[4][5]

For posture management, Lasso visualizes how every agent is built, what is exploitable and how to fix it before the agent reaches production. Lasso posture coverage spans OWASP, MITRE, NIST, the EU AI Act and internal policies. Lasso identifies misconfigurations, risky tool access, weak guardrails, exposed dependencies and potential attack paths. Lasso assesses agentic architecture for compliance and governance requirements, including NIST, the EU AI Act and company-specific AI policies.[7]

Lasso identifies exploitable vulnerabilities through high-agency adversarial testing and auto-updates policies with purple teaming. Lasso integrates with a CI/CD pipeline so red teaming simulations can run automatically on every application update. Before an attack runs, Lasso performs optional reconnaissance to map the profile of the application. The Lasso agentic attack engine runs multi-turn adversarial simulations that evolve across conversation turns. Lasso red teaming runs from the Lasso tenant, with no agents, no code changes and no source code access.[1][4][8]

Lasso enforces policies inline at the proxy, API or AI Gateway layer. Lasso detects and terminates AI threats across an environment, with coverage including MITRE and OWASP. Lasso monitors every interaction across the AI stack, from tool calls and RAG retrievals to sub-agent communications. Lasso enforces predefined and custom security policies inline before agent actions execute. Lasso builds a behavioral baseline for every AI user and agent in an environment. Lasso flags deviations from the behavioral baseline in real time, including novel attack techniques with no existing signature. Lasso runs as a lightweight layer alongside an existing stack with no architectural changes required. Lasso shows alerts and audit logs directly in Lasso or streams findings into a SIEM alongside other security telemetry.[1][4][9]

Lasso's Intent Deputy secures AI agents with real-time intent analysis. Lasso takes action according to a security threshold, either blocking the request or sending an alert. Lasso decodes the semantic meaning behind every request to detect hidden malicious commands behind techniques like obfuscation, adversarial embeddings and payload splitting. Lasso uses an 8-dimensional coordinate system to provide human-readable evidence for legal and risk teams.[10]

Lasso enables enterprises to use AI across every department, from SaaS and web chatbots to local desktop agents and MCPs. Lasso discovers, inventories and assesses every AI asset across an enterprise, from models to SaaS and web chatbots to local desktop agents or homegrown agents and their connected tools. Lasso detects in real time whether PII, PCI or other sensitive data is shared in prompts or file uploads, and masks that content before the prompt is sent to third-party models. Lasso limits which AI agents are available to certain roles and restricts high-risk actions based on clearance levels. Lasso maps policies to NIST, OWASP and MITRE using plug-and-play templates, or enforces internal rules with custom policies.[6]

Lasso Security governs the lifecycle of AI agents from build-time to runtime for agents built on Vertex AI, Microsoft Copilot, AWS Bedrock, Salesforce Agentforce or any other cloud or third-party service. Lasso gives risk scores that highlight which agents require immediate attention. Lasso maps agents and their connections to third-party tools, databases and internal services to identify potential attack paths. Lasso applies real-time guardrails at the moment of interaction that block malicious inputs, sanitize outputs and enforce content policies.[8][11][12][13]

Lasso Security on the record

Sources

Lasso Security full record

  1. [1]Secure AI Adoption at Enterprise Scale | LassoLasso Security · undated page, accessed September 27, 2026 · Tier A
  2. [2]Lasso security announces future of ai security with cpu based guardrailsLasso Security via GlobeNewswire · globenewswire.com · published September 2, 2026 · Tier A
  3. [3]Lasso Security launches CPU-only AI guardrail, raises $30MSiliconANGLE · published September 2, 2026 · Tier B
  4. [4]AI Security Platform for Agents & AI ApplicationsLasso Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]AI Discovery & AI-BOM for Enterprise SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]AI Usage Control for Enterprise Security | Lasso SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]AI Security Posture Management | Lasso SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]AI Red Teaming | Lasso SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI Detection & Response | Lasso SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Intent Security for AI Agents | Lasso SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Enterprise AI Agent Security for Copilot, Vertex AI & BedrockLasso Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]AI Application Security | Lasso SecurityLasso Security · undated page, accessed November 10, 2026 · Tier A
  13. [13]Information Security Policy & Data ProtectionLasso Security · published February 22, 2024 · Tier A

Pillar Security full record

  1. [1]pillar.securityPillar Security · pillar.security · undated page, accessed November 10, 2026 · Tier A
  2. [2]Pillar Security | Securing the Agentic WorkforcePillar Security · undated page, accessed November 11, 2026 · Tier A
  3. [3]Pillar Security Platform | Securing the Entire AI Software LifecyclePillar Security · undated page, accessed November 11, 2026 · Tier A
  4. [4]AI Discovery & Posture | Pillar SecurityPillar Security · undated page, accessed November 11, 2026 · Tier A
  5. [5]AI Red Teaming & Risk Detection | Pillar SecurityPillar Security · undated page, accessed November 11, 2026 · Tier A
  6. [6]AI Runtime Guardrails | Pillar SecurityPillar Security · undated page, accessed November 11, 2026 · Tier A
  7. [7]Agentic Endpoint: Secure AI Coding Agents | Pillar SecurityPillar Security · undated page, accessed November 11, 2026 · Tier A
  8. [8]AI Security Solutions | Pillar SecurityPillar Security · undated page, accessed November 11, 2026 · Tier A
  9. [9]AI Governance & Compliance | Pillar SecurityPillar Security · undated page, accessed November 11, 2026 · Tier A
  10. [10]Deployment Options: Cloud, Self-Hosted, Hybrid · PillarPillar Security · undated page, accessed November 11, 2026 · Tier A
  11. [11]Vanta to Acquire Pillar Security to Turn AI Policy Into PracticeBusiness Wire · published November 9, 2026 · Tier A

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