CISO Tribune

Vendor comparison · 2 companies

Impart Security vs Lasso Security

Impart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs. Lasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection. CISO Tribune files both under AI firewalls and guardrails and AI model and agent 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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  • Impart Security
  • Lasso Security
Impart Security vs Lasso Security: Products, Customers and Funding Compared
Impart SecurityImpart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs.impart.aiLasso SecurityLasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection.lasso.security
What it sells
  • Agent Protection[3][10]Enforces application-specific policies on agent traffic and tool interactions.
  • API Security[5][8][10]Enforces controls based on how APIs behave across requests and sessions.
  • Runtime Defense Harness[10]Uses AI-assisted investigation to develop targeted virtual patches.
  • AI Security Platform[4]Covers discovery, AI risk assessment and runtime protection.
Categories
Headquarters
San Francisco, United StatesNot stated on its pages
Founded
Not stated on its pages2023[2]
Ownership and funding
Privately heldPrivately held
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • September 2, 2026Lasso Security launched an AI guardrail that runs on CPUs only and raised $30 million.[3]
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
Impart describes protection that runs inside an organisation's existing ingress. The stated coverage spans AI, applications and APIs. Impart also describes integrating its protection into existing ingress and egress infrastructure, with policies and runtime state synchronized across distributed environments.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.
Last verified
September 27, 2026November 2, 2026

Where they overlap

  • AI firewalls and guardrails is the primary category of both Impart Security and Lasso Security; both are also filed under AI model and agent security.
  • Both are privately held.

Where they differ, field by field

  • Impart Security is also filed under Bot and abuse management. Lasso Security is also filed under Workforce AI usage security.
  • Impart Security lists Agent Protection, API Security and Runtime Defense Harness. Lasso Security lists AI Security Platform.
  • Impart Security is headquartered in San Francisco, United States.
  • Lasso Security was founded in 2023.

How they differ

CISO Tribune files both Impart Security and Lasso Security under AI firewalls and guardrails as the primary category, and both are privately held. Impart Security is headquartered in San Francisco, United States, and Lasso Security was founded in 2023. CISO Tribune also files Impart under bot and abuse management, and files Lasso under workforce AI usage security.

Impart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs, with products named Agent Protection, API Security and Runtime Defense Harness. It enforces policies in the application traffic path and runs inside the existing ingress. Impart's Runtime Defense Harness uses AI-assisted investigation to develop targeted virtual patches. Impart's plugin runs natively inside Kong Gateway, and its integration with Wiz sends hosts to a Wiz tenant as Imported Assets. Impart names FanDuel and Crossbeam as customers.

Lasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection. Lasso inventories AI components such as models, MCP servers and delegated agents, and it connects to builder platforms including Amazon Bedrock, Azure AI Foundry and Microsoft Copilot Studio. It also runs multi-turn adversarial simulations for red teaming and enforces policies inline at the proxy, API or AI Gateway layer. On September 2, 2026, Lasso Security launched an AI guardrail that runs on CPUs only and raised $30 million.

What it sells: Impart Security

What Agent Protection does[3][10]
Agent Protection enforces application-specific policies on agent traffic and tool interactions, using runtime context to restrict unauthorized actions and access. Agent Protection runs on the same ingress-layer enforcement engine that inspects the full attack surface.
What API Security does[5][8][10]
API Security enforces controls based on how APIs behave across requests and sessions, not just individual request signatures. Impart applies inline, sequence-aware enforcement to every API call. API Security detects and blocks shadow APIs as they are accessed. API Security prevents sensitive data (PII) from leaving the system.
What Runtime Defense Harness does[10]
Runtime Defense Harness uses AI-assisted investigation to develop targeted virtual patches and deploy protection through the same engine already protecting the applications. Targeted virtual patches are generated and tested against runtime traffic, with Policy as Code validated before deployment. AI-generated virtual patches are informed by runtime behavior, tested against live traffic and enforced through programmable Layer 7 controls.

Questions about Impart Security and Lasso Security

What do Impart Security and Lasso Security sell?
Impart Security sells Agent Protection, API Security and Runtime Defense Harness. Lasso Security sells AI Security Platform.
Are Impart Security and Lasso Security in the same category?
Yes. AI firewalls and guardrails is the primary category of both on CISO Tribune.
Where are Impart Security and Lasso Security headquartered?
Impart Security is headquartered in San Francisco, United States.
When were Impart Security and Lasso Security founded?
Lasso Security was founded in 2023.
Who owns Impart Security and Lasso Security?
Impart Security is privately held. Lasso Security is privately held.
Who are Impart Security and Lasso Security sold to?
Impart describes protection that runs inside an organisation's existing ingress. From its own pages, Lasso Security describes its AI Security Platform as built for enterprises.
What have Impart Security and Lasso Security announced recently?
September 2, 2026: Lasso Security launched an AI guardrail that runs on CPUs only and raised $30 million.

About Impart Security

Impart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs. Impart enforces security policies directly in the application traffic path. Impart describes one programmable engine that unifies OWASP coverage, stateful behavioral analysis and custom security logic to block threats inline. Impart defines runtime enforcement as the ability to detect and block a threat at the moment the request is made, inline in the path of live traffic. Impart integrates programmable Layer 7 protection into existing ingress and egress infrastructure, enforces deterministic controls locally, and synchronizes policies and runtime state across distributed environments.[4][6][9][10]

For bots, Impart blocks credential stuffing, scraping and AI-driven automation with stateful controls that evaluate request patterns and session behavior. For agents, Impart enforces application-specific policies on agent traffic and tool interactions, using runtime context to restrict unauthorized actions and access. Impart detects and blocks shadow APIs as they are accessed. Impart's API enforcement prevents sensitive data (PII) from leaving the system.[8][10]

Impart sits between the agent and the customer's systems, enforcing security before any action executes. Agent protection runs on the same ingress-layer enforcement engine that inspects the full attack surface. Impart evaluates each prompt using session history, identity, prior model interactions and the chain of tool calls behind it. Impart's LLM enforcement sits inline between the caller and the model and runs before the prompt reaches inference. Impart builds a live catalog of every MCP server reaching the environment, sanctioned or not, and every tool exposed by each one. Policy-as-code in Impart applies the same way to AI clients, CLI users, web apps and direct API callers.[3][5][6][8]

Runtime Defense Harness uses AI-assisted investigation to develop targeted virtual patches and deploy protection through the same engine already protecting the applications. Impart generates and tests targeted virtual patches against runtime traffic, validating Policy as Code before deployment. Impart deploys custom virtual patches in under 60 minutes. Impart executes custom security logic inline using request context and shared session state, and blocks attacks without model inference in the traffic path.[4][10]

Impart runs inside the existing ingress, without adding an extra traffic hop or single point of failure. A lightweight module runs inside the existing ingress controller, capturing HTTP requests after TLS termination and passing them to a local inspector. If the inspector fails or times out, the module fails open. The Impart inspector runs locally alongside the ingress to evaluate request context, runtime state and custom security logic. Enforcement decisions in Impart are deterministic, and no AI inference or cloud round trip is required. Impart Cloud keeps policies and shared state in sync. Impart extends programmable Layer 7 protection to outbound AI requests and agent interactions through supported AI gateway infrastructure. Impart inspects traffic, applies custom security logic and protects sensitive data without replacing the existing gateway, routing or cost controls. The Impart Security plugin runs natively inside Kong Gateway, paired with an Impart Inspector running in the customer's own environment.[5][9][10]

Impart inspects every request to AI applications, web applications and APIs in the traffic path where it sits. The Impart integration with Wiz sends hosts to a Wiz tenant as Imported Assets, next to the cloud resources. Impart sends hostnames to Wiz and does not read Wiz issues, findings or resources. FanDuel replaced black-box security with Impart. Impart offered Crossbeam a single solution for web application, API security and LLM protection.[1][2][3][4][5][6][7][8][9][10]

Impart Security on the record

Sources

Impart Security full record

  1. [1]impart.aiImpart Security · impart.ai · undated page, accessed September 27, 2026 · Tier A
  2. [2]impart.aiImpart Security · impart.ai · undated page, accessed September 27, 2026 · Tier A
  3. [3]Agent Protection - Control AI Agent Behavior | ImpartImpart Security · undated page, accessed September 27, 2026 · Tier A
  4. [4]AI Runtime Defense | Impart Security PlatformImpart Security · undated page, accessed October 25, 2026 · Tier A
  5. [5]LLM Protection | Deterministic Agent Controls | ImpartImpart Security · undated page, accessed October 25, 2026 · Tier A
  6. [6]MCP Protection | Runtime Control for MCP Layer | ImpartImpart Security · undated page, accessed October 25, 2026 · Tier A
  7. [7]WAF for the Agentic Era | Impart SecurityImpart Security · undated page, accessed October 25, 2026 · Tier A
  8. [8]API Security for the Agentic Era | Impart SecurityImpart Security · undated page, accessed October 25, 2026 · Tier A
  9. [9]Integrations with Impart Security | Impart Security Runtime ProtectionImpart Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Programmable Layer 7 Firewall | Impart SecurityImpart Security · undated page, accessed November 10, 2026 · Tier A

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

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