Last updated: November 13, 2026
Palo Alto Networks Prisma AIRS and Check Point Lakera are the top GenAI security platforms for runtime protection in 2027, Prompt Security and Lasso lead for controlling employee use of AI tools, and HiddenLayer and Noma stand out for securing models and AI supply chains.
AI agents now read email, browse the web and call tools, which turns prompt injection and data leakage into real business risks. Security teams need visibility and controls across both employee AI use and homegrown AI applications.
GenAI Security Platforms To Use In 2027
| Platform | Best For | Core Strength | Category |
|---|---|---|---|
| Prisma AIRS | Enterprises on Palo Alto | AI runtime security and posture | AI security platform |
| Lakera | Real-time prompt injection defense | Guardrails trained on large attack data | AI runtime security |
| Prompt Security | Employee AI usage | Visibility and DLP for AI tools | AI usage security |
| Lasso Security | Securing GenAI adoption | Contextual controls for chat and agents | AI usage security |
| HiddenLayer | Protecting models | Model scanning and runtime defense | Model security |
| Noma Security | AI supply chain and agents | Inventory and posture for AI assets | AI security posture |
| Protect AI | ML pipeline security | Model scanning and red teaming | Model security |
| Zscaler AI Guard | Zscaler customers | AI controls in the security cloud | Network security add-on |
How We Scored
We scored platforms on prompt injection and jailbreak defense, sensitive data protection, AI usage visibility, model and supply chain scanning, agent security, deployment options and integrations.
The Top GenAI Security Platforms
1. Prisma AIRS
Prisma AIRS protects AI apps, models and agents at runtime and scans for posture issues.
It plugs into Palo Alto’s wider platform.
Best for: Enterprises on Palo Alto. Core strength: AI runtime security and posture.
2. Lakera
Lakera Guard screens prompts and outputs for injection, jailbreaks and data leaks, now as part of Check Point.
It is known for strong detection research.
Best for: Real-time prompt injection defense. Core strength: Guardrails trained on large attack data.
3. Prompt Security
Prompt Security shows which AI tools employees use and stops sensitive data leaving.
It also protects homegrown AI apps.
Best for: Employee AI usage. Core strength: Visibility and DLP for AI tools.
4. Lasso Security
Lasso monitors and controls interactions with AI tools and agents across the organization.
Policies adapt to context.
Best for: Securing GenAI adoption. Core strength: Contextual controls for chat and agents.
5. HiddenLayer
HiddenLayer scans models for tampering and protects them in production.
It suits teams deploying their own models.
Best for: Protecting models. Core strength: Model scanning and runtime defense.
6. Noma Security
Noma discovers AI models, notebooks and agents across the organization and flags risky configurations.
Security teams gain an AI asset inventory.
Best for: AI supply chain and agents. Core strength: Inventory and posture for AI assets.
7. Protect AI
Protect AI, part of Palo Alto Networks, scans models and tests AI apps with automated red teaming.
It covers the ML lifecycle.
Best for: ML pipeline security. Core strength: Model scanning and red teaming.
8. Zscaler AI Guard
Zscaler extends its security cloud with visibility and data protection for AI apps.
Existing customers can roll it out quickly.
Best for: Zscaler customers. Core strength: AI controls in the security cloud.
Inventory Your AI Use First
Most organizations underestimate how many AI tools and agents are already in use. Start with discovery, then apply data protection to the highest-risk workflows.
Frequently Asked Questions
What is prompt injection?
An attack that hides instructions in content an AI reads so it ignores its intended rules.
Do I need a separate AI security tool?
Organizations using AI agents or building AI apps increasingly do, because traditional tools miss prompt-level risks.
What is AI DLP?
Data loss prevention that stops sensitive information from being pasted into or leaked by AI tools.
Conclusion
Prisma AIRS and Lakera lead for runtime protection, Prompt Security and Lasso for employee AI use and HiddenLayer and Noma for models and AI assets.
