Prompt Security vs NeuralTrust: Which One Covers More of the OWASP LLM Top 10 in 2026?
Prompt Security and NeuralTrust are both Guardrails / LLM Firewall vendors. Prompt Security covers 3 of 10 OWASP LLM risks and NeuralTrust covers 4, as of 2026-07-13. Based on llmthreat's coverage scoring, NeuralTrust covers more of the OWASP LLM Top 10 (4 vs 3). The full row-by-row diff is below.
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Spec comparison
| Attribute | Prompt Security | NeuralTrust |
|---|---|---|
| Category | Guardrails / LLM Firewall | Guardrails / LLM Firewall |
| Deployment | SaaS + on-prem/self-hosted; inline proxy, browser extension, SDK | SaaS, self-hosted, or hybrid (split-plane) |
| Best for | Governing employee GenAI/shadow-AI usage and wrapping homegrown LLM apps with real-time DLP and injection defense | Enterprises needing an infrastructure-level guardrail/gateway plus red teaming across many LLM apps and agents |
| Founded | 2023 | 2022 |
| Funding | ~$23M total ($5M seed + $18M Series A) | $20M (€17.2M seed) |
| Status | Acquired · SentinelOne | Active |
OWASP LLM Top 10 coverage: Prompt Security vs NeuralTrust
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 | Prompt Security | NeuralTrust |
|---|---|---|
| LLM01 Prompt Injection | Covered | Covered |
| LLM02 Sensitive Information Disclosure | Covered | Covered |
| LLM03 Supply Chain | Not covered | Partial |
| LLM04 Data and Model Poisoning | Not covered | Partial |
| LLM05 Improper Output Handling | Partial | Covered |
| LLM06 Excessive Agency | Partial | Partial |
| LLM07 System Prompt Leakage | Partial | Partial |
| LLM08 Vector and Embedding Weaknesses | Partial | Not covered |
| LLM09 Misinformation | Not covered | Covered |
| LLM10 Unbounded Consumption | Covered | Partial |
Where they differ
Prompt Security addresses LLM08 Vector and Embedding Weaknesses — risks where NeuralTrust scores Not covered or Unverified.
NeuralTrust covers LLM03 Supply Chain, LLM04 Data and Model Poisoning, LLM09 Misinformation where Prompt Security 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?
NeuralTrust edges it on breadth, 4 covered risks to 3. Prompt Security is built for governing employee GenAI/shadow-AI usage and wrapping homegrown LLM apps with real-time DLP and injection defense, while NeuralTrust suits enterprises needing an infrastructure-level guardrail/gateway plus red teaming across many LLM apps and agents. Both rows sit in the full coverage matrix — read the profiles before deciding: Prompt Security and NeuralTrust.
Frequently asked questions
Does Prompt Security or NeuralTrust cover more of the OWASP LLM Top 10?
NeuralTrust does, 4 risks to 3 by our scoring. The diff table above shows exactly where they part ways.
Are Prompt Security and NeuralTrust independent?
Prompt Security was acquired by SentinelOne; NeuralTrust is independent, as of 2026-07-13.