CISO Tribune

Vendor comparison · 2 companies

Lasso Security vs Obsidian Security

Lasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection. Obsidian Security sells real-time visibility, continuous governance and runtime enforcement over agents, identities and integrations across third-party apps. CISO Tribune files both under 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
  • Obsidian Security
Lasso Security vs Obsidian Security: Products, Customers and Funding Compared
Lasso SecurityLasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection.lasso.securityObsidian SecurityObsidian Security sells real-time visibility, continuous governance and runtime enforcement over agents, identities and integrations across third-party apps.obsidiansecurity.com
What it sells
  • AI Security Platform[4]Covers discovery, AI risk assessment and runtime protection.
  • Continuous GovernanceChecks each requirement, written once, in each connected app that exposes the data it needs.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
2023[2]Not stated on its pages
Ownership and funding
Privately heldPrivately held[1]
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]
  • August 4, 2026Obsidian Security said it raised $85 million in a Series D funding round that valued the company at $1.1 billion.[15]
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.From its own pages, Obsidian Security sells to security teams that must defend actions by identities they can barely enumerate, across apps they did not build, on infrastructure they do not control. Obsidian Security describes security teams at large financial services and technology companies adopting its product to detect account takeovers, SaaS threats and privilege misuse. Obsidian Security addresses enterprises whose data lives in third-party enterprise apps they do not own. Obsidian Security addresses organisations whose employees connect AI agents to business apps through MCP. Obsidian Security addresses organisations where each team picks its own AI agent tool.
Last verified
November 2, 2026November 4, 2026

Where they overlap

  • Lasso Security and Obsidian Security are both filed under AI model and agent security and Workforce AI usage security.
  • Both are privately held.

Where they differ, field by field

  • Lasso Security's primary category is AI firewalls and guardrails; Obsidian Security's is SaaS security posture.
  • Obsidian Security is also filed under Identity threat detection and response.
  • Lasso Security lists AI Security Platform. Obsidian Security lists Continuous Governance.
  • Lasso Security was founded in 2023.

What it sells: Obsidian Security

What Continuous Governance does
The control model includes mappings to NIST, CIS, ISO 27001, and GDPR. Supported controls are checked continuously, and changes are shown. Fixes are routed through Jira, ServiceNow, and other supported tools.

Questions about Lasso Security and Obsidian Security

What do Lasso Security and Obsidian Security sell?
Lasso Security sells AI Security Platform. Obsidian Security sells Continuous Governance.
Are Lasso Security and Obsidian Security in the same category?
They share AI model and agent security and Workforce AI usage security. Lasso Security's primary category is AI firewalls and guardrails and Obsidian Security's is SaaS security posture.
When were Lasso Security and Obsidian Security founded?
Lasso Security was founded in 2023.
Who owns Lasso Security and Obsidian Security?
Lasso Security is privately held. Obsidian Security is privately held.
Who are Lasso Security and Obsidian Security sold to?
From its own pages, Lasso Security describes its AI Security Platform as built for enterprises. From its own pages, Obsidian Security sells to security teams that must defend actions by identities they can barely enumerate, across apps they did not build, on infrastructure they do not control.
What have Lasso Security and Obsidian Security announced recently?
September 2, 2026: Lasso Security launched an AI guardrail that runs on CPUs only and raised $30 million. August 4, 2026: Obsidian Security said it raised $85 million in a Series D funding round that valued the company at $1.1 billion.

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

Obsidian Security full record

  1. [1]obsidiansecurity.comObsidian Security · obsidiansecurity.com · undated page, accessed November 4, 2026 · Tier A
  2. [2]Unlocking ai potential securelyObsidian Security · obsidiansecurity.com · undated page, accessed November 4, 2026 · Tier A
  3. [3]Secure AI. Fearless Innovation. | ObsidianObsidian Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]The Obsidian Security PlatformObsidian Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Obsidian Security – Who We AreObsidian Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]The Data Behind Better SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]Network EffectsObsidian Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]Automate Third-Party Application ComplianceObsidian Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Runtime Policy Decision Engine for AI Agents | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]MCP Security Proxy for AI Agents | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]MCP Security: Audit and Control Every MCP ServerObsidian Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]Continuous Third-Party App Governance | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  13. [13]Third-Party Application Security | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  14. [14]Flexible SaaS Security Pricing | ObsidianObsidian Security · undated page, accessed November 10, 2026 · Tier A
  15. [15]Obsidian Security raises funding at $1.1 billion valuation on AI security demand | ReutersReuters · published August 4, 2026 · Tier B

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