WitnessAI vs Lasso Security: Which One Covers More of the OWASP LLM Top 10 in 2026?
WitnessAI and Lasso Security are both Guardrails / LLM Firewall vendors. WitnessAI covers 3 of 10 OWASP LLM risks and Lasso Security covers 3, as of 2026-07-13. Based on llmthreat's coverage scoring, WitnessAI and Lasso Security cover the same number of OWASP LLM Top 10 risks (3 each); the difference is in which ones. The full row-by-row diff is below.
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Spec comparison
| Attribute | WitnessAI | Lasso Security |
|---|---|---|
| Category | Guardrails / LLM Firewall | Guardrails / LLM Firewall |
| Deployment | Single-tenant environment with data sovereignty (proxy/gateway model) | SaaS with runtime proxy/gateway; MCP security for agents |
| Best for | Enterprises needing an inline AI firewall to discover shadow AI/MCP servers, enforce policy, redact sensitive data, and block prompt injection/jailbreaks across employee and agent usage | Enterprises wanting full-lifecycle GenAI security from shadow-AI discovery through runtime protection and red teaming |
| Founded | 2023 | 2023 |
| Funding | Over $85M | Undisclosed |
| Status | Active | Active |
OWASP LLM Top 10 coverage: WitnessAI vs Lasso Security
This diff is llmthreat's editorial read of both vendors' public documentation as of 2026-07-13, not an audited or vendor-endorsed score.
| OWASP LLM Risk | WitnessAI | Lasso Security |
|---|---|---|
| LLM01 Prompt Injection | Covered | Covered |
| LLM02 Sensitive Information Disclosure | Covered | Covered |
| LLM03 Supply Chain | Partial | Partial |
| LLM04 Data and Model Poisoning | Not covered | Partial |
| LLM05 Improper Output Handling | Partial | Partial |
| LLM06 Excessive Agency | Covered | Covered |
| LLM07 System Prompt Leakage | Not covered | Unverified |
| LLM08 Vector and Embedding Weaknesses | Not covered | Unverified |
| LLM09 Misinformation | Partial | Unverified |
| LLM10 Unbounded Consumption | Not covered | Unverified |
Where they differ
WitnessAI addresses LLM09 Misinformation — risks where Lasso Security scores Not covered or Unverified.
Lasso Security covers LLM04 Data and Model Poisoning where WitnessAI doesn't.
On the rest, they overlap. Past those gaps the decision is depth per risk, deployment, and price, not breadth.
Which should you choose?
On raw counts it's a tie at 3 covered risks each — the difference is which risks. WitnessAI is built for enterprises needing an inline AI firewall to discover shadow AI/MCP servers, enforce policy, redact sensitive data, and block prompt injection/jailbreaks across employee and agent usage, while Lasso Security suits enterprises wanting full-lifecycle GenAI security from shadow-AI discovery through runtime protection and red teaming. Both rows sit in the full coverage matrix — read the profiles before deciding: WitnessAI and Lasso Security.
Frequently asked questions
Does WitnessAI or Lasso Security cover more of the OWASP LLM Top 10?
Neither — both cover 3 of the ten risks by our scoring, though not the same ones. The diff table above shows where they split.
Are WitnessAI and Lasso Security independent?
WitnessAI is independent; Lasso Security is independent, as of 2026-07-13.