LangProtect vs Harmonic Security
Compare LangProtect and Harmonic Security across AI security, runtime protection, workforce AI governance, AI agent security, MCP controls, deployment, and enterprise capabilities to find the right platform for your organization.
How They Differ
See how LangProtect and Harmonic Security differ in their approach to AI security, governance, and workforce protection.
LangProtect
Enterprise AI Security Platform
Unified security, governance, and visibility across AI applications, agents, and workforce AI.
Harmonic Security
AI Governance & Security Platform
Discovers, governs, and protects employee AI usage across apps, browsers, agents, and MCP.
Who Should Choose Which?
Both platforms help organizations secure AI adoption, but they focus on different parts of the AI security stack.
Choose LangProtect if...
- You need to secure AI applications, AI agents, and employee AI usage through one platform.
- You build or deploy custom AI applications that need runtime protection against prompt injection, jailbreaks, data leakage, and other AI-specific threats.
- You need a dedicated AI Firewall, customizable security scanners, centralized policies, and enterprise security analytics.
- You want AI security and governance across both your AI infrastructure and workforce.
Choose Harmonic Security if...
- Your primary priority is workforce AI governance and Shadow AI visibility.
- You need visibility across browser-based AI, desktop applications, embedded AI, IDEs, and local AI tools.
- You want contextual data protection with inline warnings, coaching, nudges, and blocking for employee AI interactions.
- You need detailed insight into how employees use AI through AI Usage Intelligence and business-use-case analysis.
Choose Both if...
- You need strong workforce AI governance and endpoint visibility alongside dedicated runtime protection for the AI applications your organization builds.
- Your security strategy requires both employee AI controls and application-level AI security, with each platform covering a different layer of your AI environment.
What Each Platform Does
Both secure enterprise AI, but LangProtect focuses on runtime security and unified governance, while Harmonic emphasizes workforce visibility and agent governance.
| Capability | LangProtect | Harmonic Security | Advantage |
|---|---|---|---|
| Runtime AI Security | Native AI Firewall for real-time inspection and enforcement | Endpoint and interaction-level controls focused primarily on workforce AI usage | LangProtect |
| Prompt Injection Protection | Dedicated scanner with real-time detection and blocking | Listed as coming soon for agent security | LangProtect |
| Custom Security Scanners | 30+ built-in scanners plus Custom Scanner Builder | Custom keyword detections and contextual policies, but no publicly documented scanner-builder framework | LangProtect |
| Shadow AI Discovery | Enterprise-wide discovery of unauthorized AI usage | Discovery across browser, desktop, IDE, embedded, and agentic AI | Tie |
| Embedded AI Discovery | AI usage visibility across supported enterprise environments | Explicit discovery of AI embedded inside SaaS applications | Harmonic |
| Local AI / Model Discovery | AI application and usage visibility | Detects local models, inference endpoints, and AI applications on endpoints | Harmonic |
| AI Security Testing | Interactive security playgrounds for testing prompts and policies | Primarily governance and runtime controls; no equivalent public playground capability documented | LangProtect |
| AI Red Teaming | AI security testing and evaluation capabilities | No dedicated red-team platform publicly documented | LangProtect |
What It Takes to Secure Each One
Both platforms secure enterprise AI, but they take different approaches to deployment and management.
LangProtect
Unified AI security platform combining runtime protection, workforce AI governance, AI agent security, MCP monitoring, policy management, and centralized analytics. Browser extension, desktop application, APIs, and AI Firewall capabilities are managed through one platform.
Harmonic Security
AI governance and security platform built around Explore, Guide, and Command. It combines AI discovery, endpoint protection, contextual data controls, workforce governance, agent security, and MCP governance across browser, desktop, embedded AI, and agentic environments.
TIME TO FIRST VALUE
Hours
Minutes to Days depending on endpoint deployment and the scope of AI environments being discovered and governed.
WHAT IT MUST CHANGE
- Deploy the browser extension and/or desktop application for workforce protection.
- Connect AI applications through the AI Firewall or APIs.
- Configure organization-wide policies from the centralized platform.
- Deploy the browser extension and Endpoint Agent across employee devices.
- Configure identity and enterprise application integrations.
- Enable policies for AI applications, users, data types, and agent activity.
- Deploy the MCP Gateway where agent and MCP governance is required.
PREREQUISITES
- Identity provider / SSO
- AI application or browser deployment
- Administrator access for policy configuration
- Supported identity provider such as Entra ID, Okta, or Google Workspace
- Browser extension and/or Endpoint Agent deployment
- Enterprise device-management tooling for endpoint rollout
- Administrator access for policy configuration
- MCP Gateway deployment for MCP governance
What Your Security Review Will Ask
Here's how LangProtect and Harmonic Security compare across the criteria enterprise security teams typically evaluate.
| Evaluation Criteria | LangProtect | Harmonic Security |
|---|---|---|
| AI application security | Yes | No |
| Runtime AI security | Yes | Yes |
| Prompt injection protection | Yes | No |
| Workforce AI security | Yes | Yes |
| AI agent security | Yes | Yes |
| MCP security | Yes | Yes |
| Sensitive data protection | Yes | Yes |
| AI security testing & red teaming | Yes | No |
| AI governance & visibility | Yes | Yes |
Frequently Asked Questions
Build a Stronger AI Security Foundation
Extend protection from the AI applications you build to the tools your workforce uses every day.
