CISO Tribune

Vendor comparison · 2 companies

Harmonic Security vs Immersive

Harmonic Security sells AI Governance and Control (AIGC), a control layer that secures and enables the AI-First workforce. Immersive sells Immersive One, which tests how people, AI-enabled workflows, security teams, and agents perform under pressure. CISO Tribune files both under AI governance. 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.

Change the companies

Up to four companies side by side.

  • Harmonic Security
  • Immersive
Harmonic Security vs Immersive: Products, Customers and Funding Compared
Harmonic SecurityHarmonic Security sells AI Governance and Control (AIGC), a control layer that secures and enables the AI-First workforce.harmonic.securityImmersiveImmersive sells Immersive One, which tests how people, AI-enabled workflows, security teams, and agents perform under pressure.immersivelabs.com
What it sells
  • Harmonic Command[3]Gives security teams visibility into how employees and agents use AI, plus controls for using the tools safely.
  • MCP Gateway[2][3][4][6]A local gateway that extends Harmonic coverage to MCP activity.
  • Harmonic Endpoint Agent[6]Identifies native AI apps, IDEs, CLI tools, locally hosted models and inference API calls on employee devices.
  • Harmonic Usage Intelligence[8]Groups prompts, files, responses, and supported agent actions into tasks and use cases.
  • Immersive One[3][4][5][9][12]Immersive One tests how people, AI-enabled workflows, security teams, and agents perform under pressure.
  • Hands-On Labs[6][10]Browser-based environments where an individual completes a real security task against live systems and tooling.
  • Cyber Drills[3][7][13]Cyber Drills recreate real incidents across people, process, and technology.
  • Cyber Range Exercises[7]Cyber Range Exercises are typically run with technical and SOC teams.
  • Resilience Pathways[10]A Resilience Pathway is a structured, role-based development journey that maps current capability to the skills a role requires.
  • AI Knowledge Pass[2][10]AI Knowledge Pass validates a person's AI-related knowledge before they're granted access to AI tools.
  • Resilience Score[3][6]Resilience Score quantifies an organization's ability to detect, respond to, and recover from cyber threats.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Privately heldNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[14]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFinancial services organizations are addressed directly, with a focus on proving cyber readiness to Boards, C-level executives, and regulators. Application security programs aimed at developers who need to prove and improve secure coding skills form a further audience. Access to capabilities depends on the customer's agreed scope and deployment model.
Last verified
November 3, 2026November 8, 2026

Where they overlap

  • Harmonic Security and Immersive are both filed under AI governance.

Where they differ, field by field

  • Harmonic Security's primary category is Workforce AI usage security; Immersive's is Security awareness training.
  • Harmonic Security is also filed under AI model and agent security and Data loss prevention. Immersive is also filed under Human risk management.
  • Harmonic Security lists Harmonic Command, MCP Gateway, Harmonic Endpoint Agent and Harmonic Usage Intelligence. Immersive lists Immersive One, Hands-On Labs, Cyber Drills, Cyber Range Exercises, Resilience Pathways and 2 more.
  • Harmonic Security is privately held.

What it sells: Harmonic Security

What Harmonic Command does[3]
Harmonic Command covers workforce AI use across supported browsers, desktop applications, command-line tools, AI APIs, and agentic workflows that use MCP. Harmonic Command intercepts the action and guides the user or agent toward a safer path.
What MCP Gateway does[2][3][4][6]
Supported OpenTelemetry sources and the local MCP Gateway extend Harmonic coverage to additional native, command-line, and MCP activity. The Harmonic MCP Gateway pairs with the Endpoint Agent and applies to agentic workflows. The MCP Gateway runs on Windows, macOS, and Linux.
What Harmonic Endpoint Agent does[6]
The Harmonic Endpoint Agent detects Claude Desktop, Claude Code, Claude Cowork and OpenAI Codex on macOS and Windows. The Endpoint Agent identifies locally hosted models such as Ollama on employee devices and ties that activity to the process and user behind it. Harmonic identifies connections to inference endpoints like OpenAI, Anthropic, Bedrock and Azure AI Foundry.

What it sells: Immersive

What Immersive One does[3][4][5][9][12]
Immersive One covers labs, simulations, AI readiness, and reporting. Access is determined by the customer’s agreed scope and deployment model.
What Cyber Drills does[3][7][13]
A Cyber Drill exercise is a simulated cyber attack that tests an organization's ability to detect, respond to, and recover from threats. Cyber Drills extend to business functions such as legal and comms.
What AI Knowledge Pass does[2][10]
AI Knowledge Pass connects access to proven competency rather than a one-time policy acknowledgment. It supports governance and compliance reporting as AI adoption scales.
What Resilience Score does[3][6]
Immersive's Resilience Score combines nine measured factors into a single value benchmarked against industry peers. The score is powered by up-to-date performance data from across the Immersive One platform.

Questions about Harmonic Security and Immersive

What do Harmonic Security and Immersive sell?
Harmonic Security sells Harmonic Command, MCP Gateway, Harmonic Endpoint Agent and Harmonic Usage Intelligence. Immersive sells Immersive One, Hands-On Labs, Cyber Drills, Cyber Range Exercises, Resilience Pathways and 2 more.
Are Harmonic Security and Immersive in the same category?
They share AI governance. Harmonic Security's primary category is Workforce AI usage security and Immersive's is Security awareness training.
Who owns Harmonic Security and Immersive?
Harmonic Security is privately held.
Who are Harmonic Security and Immersive sold to?
Financial services organizations are addressed directly, with a focus on proving cyber readiness to Boards, C-level executives, and regulators.

About Harmonic Security

Harmonic Security sells AI Governance and Control (AIGC), a control layer that secures and enables the AI-First workforce. Harmonic Security describes a platform that classifies every AI task, discovers why it is used, and controls it in real time. Harmonic Command covers workforce AI use across supported browsers, desktop applications, command-line tools, AI APIs, and agentic workflows that use MCP. Harmonic Command coverage includes ChatGPT, Claude, Copilot, Gemini, Cursor, and more than 1,000 web AI tools.[1][2][3]

Harmonic Command gives security teams visibility into how employees and agents use AI, plus controls for using the tools safely. Supported OpenTelemetry sources and the local MCP Gateway extend Harmonic coverage to additional native, command-line, and MCP activity. The Harmonic MCP Gateway pairs with the Endpoint Agent and applies to agentic workflows. The MCP Gateway runs on Windows, macOS, and Linux.[2][3][4][6]

The Harmonic Endpoint Agent identifies every native AI app, AI-first IDE, CLI tool, locally hosted model and direct inference API call running on employee devices. The Harmonic Endpoint Agent detects Claude Desktop, Claude Code, Claude Cowork and OpenAI Codex on macOS and Windows. Harmonic identifies connections to inference endpoints like OpenAI, Anthropic, Bedrock and Azure AI Foundry, and ties each connection back to the process and user that initiated it. The Endpoint Agent identifies locally hosted models such as Ollama on employee devices and ties that activity to the process and user behind it.[6]

Harmonic secures AI use in the browser with real-time visibility and control over how employees use AI tools. Harmonic identifies the specific account type and subscription plan in use. The Harmonic browser extension finds AI features running inside web apps, such as Magic Write in Canva. Harmonic can warn users as they are about to paste sensitive data, ask for a business justification, or steer them from an unsafe free tool to a sanctioned alternative. The Harmonic browser extension supports Chrome, Edge, Firefox and Safari, plus other Chromium browsers including Arc, Brave, Vivaldi, Island and Genspark.[7]

Harmonic Usage Intelligence groups prompts, files, responses, and supported agent actions into coherent tasks and organization-specific use cases, with views by department, employee, application, approval status, and time. Harmonic builds an inventory of the AI apps a workforce uses, who uses them and for what work. Harmonic records which tools are approved, how policy was applied, what was coached or blocked, and where sensitive data was exposed. Harmonic offers configurable retention, role-based access, employee masking and EU or US hosting. Harmonic does not train on customer data.[5][8][9]

Harmonic uses purpose-built small language models that read the whole prompt or file and interpret the nuance of natural language. Harmonic lets customers enforce enterprise accounts where data is ring-fenced, or restrict uploading corporate context into personal accounts. Harmonic can prevent the upload of protected health information and personally identifiable information to non-compliant models. Harmonic Security says it works with health systems, hospitals, payers and life sciences companies. Harmonic Security says it works with insurance carriers, brokers, MGAs and reinsurers. Harmonic can be deployed through Intune, Jamf, Kandji, or Group Policy.[1][2][3][4][5][8][10][11][12][13]

Harmonic Security on the record

Sources

Harmonic Security full record

  1. [1]Harmonic Security | AI Security for the WorkforceHarmonic Security · undated page, accessed November 3, 2026 · Tier A
  2. [2]Harmonic Security Raises $50 Million Series B Enabling Safe AI Adoption for Millions More EmployeesBusiness Wire · businesswire.com · published October 14, 2026 · Tier A
  3. [3]Harmonic Command: AI Governance & Usage Intelligence Platform | Harmonic SecurityHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Harmonic Explore: AI Usage Visibility & Shadow AI Discovery | Harmonic SecurityHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Harmonic Guide: Real-Time AI Policy Enforcement & Inline Controls | Harmonic SecurityHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Endpoint AI Security & ControlHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]Browser-Based GenAI SecurityHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]AI Usage IntelligenceHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI Usage Governance: Enterprise AI Policy & ControlHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]DLP for Generative AIHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]GenAI Compliance for Regulated IndustriesHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]AI Security for HealthcareHarmonic Security · undated page, accessed November 10, 2026 · Tier A
  13. [13]AI Security for InsuranceHarmonic Security · undated page, accessed November 10, 2026 · Tier A

Immersive full record

  1. [1]immersivelabs.comImmersive · immersivelabs.com · undated page, accessed November 8, 2026 · Tier A
  2. [2]Immersive one launches ai knowledge pass to close ai governance gap with industry first access control capabilityImmersive · immersivelabs.com · published July 1, 2026 · Tier A
  3. [3]Prove Cyber Resilience with Drills & Labs | ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  4. [4]Cybersecurity for Manufacturing - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  5. [5]Cybersecurity Training Platform for Teams & AI | ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  6. [6]Hands-On Cybersecurity Training & Labs - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  7. [7]Cyber Range & Cybersecurity Exercises for AI ReadinessImmersive · undated page, accessed November 10, 2026 · Tier A
  8. [8]Cybersecurity Digital Tabletop Exercises for AI ReadinessImmersive · undated page, accessed November 10, 2026 · Tier A
  9. [9]Cyber Resilience Metrics & Benchmarking - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  10. [10]Resilience Pathways: Cybersecurity Learning Paths - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  11. [11]Secure SDLC Training - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  12. [12]Financial Services Cybersecurity - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  13. [13]Why Immersive - ImmersiveImmersive · undated page, accessed November 10, 2026 · Tier A
  14. [14]Immersive Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

Spot a factual error? Request a correction.