# Harmonic Security: how AI models rank it, October 2026

IT AI Recommendation Index, October 2026 Edition. Named in 7 judge labels across 2 categories by 5 of 14 models. Page: https://it-ai-index.com/vendors/harmonic-security/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| AI security platforms | 4% | 4 | 0% | 5 |
| AI governance platforms | 0% | 41 | 0% | 2 |

## What the models said for it

- "I'd recommend starting with Harmonic Security if your top priority is controlling employee AI use" (GPT-5.4 mini, AI security)
- "Top Pick: Harmonic Security ... Go with Harmonic Security" (Gemini 3.5 Flash, AI security)
- "If your risk is employees pasting company secrets into ChatGPT/Claude, look at Harmonic Security or Prompt Security." (Gemini 3.5 Flash, AI security)
- "supplement such tools with a platform that provides this capability (e.g., Zenity, Pillar Security, or Harmonic Security)" (Mistral Small, AI governance)

## In its own words

What Harmonic Security's own pages state, read 2026-10-06. Stated by the vendor, not checked by the index.

- Positioning: AI Governance & Control Platform (https://harmonic.security/)
- For: security leaders (https://harmonic.security/)
- Free plan or trial: no signup, no sales call (https://harmonic.security/)
- Integrations claimed: 1000 (https://www.harmonic.security/products/guide)
- Certifications: ISO/IEC 27001:2022, SOC 2 Type 2, HIPAA, GDPR, CCPA, AWS Qualified Software, ISO/IEC 42001:2023, NIST AI RMF
- Hosting: EU, EU or US
- Customers named: Apax, Advisor360

## What it publishes

Every page harmonic.security exposes, read 2026-10-05: 232 addresses. By kind, pages and the last 90 days:

- blog: 155 pages, 4 in the last 90 days, latest 2026-09-21
- case study: 1 pages, 0 in the last 90 days, latest 2025-04-16
- webinar or virtual event: 1 pages, 0 in the last 90 days, latest 2025-08-26
- conference or event: 3 pages, 0 in the last 90 days, latest 2025-04-16
- comparison: 8 pages, 0 in the last 90 days, latest 2025-04-16
- glossary or explainer: 1 pages, 0 in the last 90 days, latest undated
- Recent: 2026-09-21 blog: Agent harnesses are expanding to the cloud https://www.harmonic.security/resources/agent-harnesses-are-expanding-to-the-cloud
- Recent: 2026-08-28 blog: Gartner ai usage control research points beyond basic discovery https://www.harmonic.security/resources/gartner-ai-usage-control-research-points-beyond-basic-discovery
- Recent: 2026-07-22 blog: Securing chatgpt work a practitioners guide https://www.harmonic.security/resources/securing-chatgpt-work-a-practitioners-guide
- Recent: 2026-07-21 blog: All organizations now have employees using china based ai tools https://www.harmonic.security/resources/all-organizations-now-have-employees-using-china-based-ai-tools
- Recent: 2026-06-12 blog: Securing codex best practice https://www.harmonic.security/resources/securing-codex-best-practice
- Recent: 2026-06-08 blog: Claude cowork and openai codex are becoming the interfaces for everyday work https://www.harmonic.security/resources/claude-cowork-and-openai-codex-are-becoming-the-interfaces-for-everyday-work

## Record

- Method: https://it-ai-index.com/methodology/
- Raw judge labels and full responses: https://it-ai-index.com/data/
- License: CC BY 4.0. Cite as IT AI Recommendation Index, October 2026 Edition, it-ai-index.com.