CISO Tribune

Vendor comparison · 2 companies

Harmonic Security vs Jazz

Harmonic Security sells AI Governance and Control (AIGC), a control layer that secures and enables the AI-First workforce. Jazz traces activity across four dimensions of context: data, systems, people and business. CISO Tribune files both under Workforce AI usage security and Data loss prevention. 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.

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  • Harmonic Security
  • Jazz
Harmonic Security vs Jazz: 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.securityJazzJazz traces activity across four dimensions of context: data, systems, people and business.jazz.security
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.
  • DetectionAn AI forensic endpoint agent captures data-handling actions on the endpoint.
  • Prevention[1][4]Jazz gives nudges, requests justifications and applies precise blocks when needed.
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 pages
  • March 10, 2026Jazz emerged from stealth and announced $61 million in seed and Series A financing led by Glilot Capital Partners and Team8.[13]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetNot written yet
Last verified
November 3, 2026November 9, 2026

Where they overlap

  • Harmonic Security and Jazz are both filed under Workforce AI usage security and Data loss prevention.

Where they differ, field by field

  • Harmonic Security's primary category is Workforce AI usage security; Jazz's is Data loss prevention.
  • Harmonic Security is also filed under AI model and agent security and AI governance. Jazz is also filed under Insider risk management.
  • Harmonic Security lists Harmonic Command, MCP Gateway, Harmonic Endpoint Agent and Harmonic Usage Intelligence. Jazz lists Detection and Prevention.
  • 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: Jazz

What Detection does
Jazz's AI forensic endpoint agent captures every meaningful data-handling action on the endpoint. Jazz stores forensic data in an encrypted, rolling buffer on the endpoint. The agent streams lightweight metadata about data movements to the Jazz cloud.
What Prevention does[1][4]
Jazz gives nudges, requests justifications and applies precise blocks when needed. Jazz asks the user for a quick explanation when an action is unexpected or potentially risky. Jazz flags highly sensitive actions to a manager or security analyst before allowing them.

Questions about Harmonic Security and Jazz

What do Harmonic Security and Jazz sell?
Harmonic Security sells Harmonic Command, MCP Gateway, Harmonic Endpoint Agent and Harmonic Usage Intelligence. Jazz sells Detection and Prevention.
Are Harmonic Security and Jazz in the same category?
They share Workforce AI usage security and Data loss prevention. Harmonic Security's primary category is Workforce AI usage security and Jazz's is Data loss prevention.
Who owns Harmonic Security and Jazz?
Harmonic Security is privately held.
What have Harmonic Security and Jazz announced recently?
March 10, 2026: Jazz emerged from stealth and announced $61 million in seed and Series A financing led by Glilot Capital Partners and Team8.

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

Jazz full record

  1. [1]jazz.securityJazz · jazz.security · undated page, accessed November 9, 2026 · Tier A
  2. [2]Jazz | About UsJazz · undated page, accessed November 10, 2026 · Tier A
  3. [3]Jazz | AI Investigation PlatformJazz · undated page, accessed November 10, 2026 · Tier A
  4. [4]Jazz | Time For the New Era of DLPJazz · undated page, accessed November 10, 2026 · Tier A
  5. [5]Jazz | Detection: AI Forensic Endpoint Agent for Data SecurityJazz · undated page, accessed November 10, 2026 · Tier A
  6. [6]SOC 2 compliance checklist: what auditors sampleJazz · published October 23, 2026 · Tier A
  7. [7]Jazz | UCLA Anderson School of Management Customer StoryJazz · undated page, accessed November 10, 2026 · Tier A
  8. [8]Jazz | Lemonade Insurance Customer StoryJazz · undated page, accessed November 10, 2026 · Tier A
  9. [9]Jazz | Data Posture Management & Risk MappingJazz · undated page, accessed November 10, 2026 · Tier A
  10. [10]Jazz | DLP Prevention: Surgical Data Loss ControlsJazz · undated page, accessed November 10, 2026 · Tier A
  11. [11]Jazz | University of Health Sciences and Pharmacy (UHSP) Customer StoryJazz · undated page, accessed November 10, 2026 · Tier A
  12. [12]Jazz | AlphaSense Customer StoryJazz · undated page, accessed November 10, 2026 · Tier A
  13. [13]Israeli AI data loss prevention co Jazz raises $61mGlobes · published March 10, 2026 · Tier B

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