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

Gane Index, November 2026 Edition. Named in 6 judge labels across 1 category by 5 of 14 models. Page: https://www.gane.ai/index/it/vendors/harmonic-security

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [AI security platforms](https://www.gane.ai/index/it/security/ai-security-platforms/index.md) | 2% | 16 | 0% | 6 |

## What the models said for it

- "I recommend Harmonic Security as the best starting point" (Kimi K2, AI security)
- "put Proofpoint AI Security and Harmonic Security on the shortlist" (GPT-6 Luna, AI security)
- "Best for Employee GenAI Data Loss Prevention" (Gemini 3.5 Flash, AI security)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 1 | 1 | 0 | 2 |
| Perplexity Sonar | 0 | 0 | 0 | 0 | 0 |
| Grok 4.20 | 0 | 0 | 1 | 0 | 1 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 0 | 0 | 0 | 0 | 0 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 1 | 0 | 0 | 0 | 1 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 0 | 0 | 1 | 0 | 1 |
| GPT-6 Luna | 0 | 1 | 0 | 0 | 1 |
| Muse Glimmer 30B | 0 | 0 | 0 | 0 | 0 |

## Sources returned with these answers

The sites and pages cited by the answers that named Harmonic Security, from 13 of the 13 answers that named it (only the models that return a source list).

### Domains cited

- gartner.com: 5
- securityboulevard.com: 4
- acronis.com: 3
- akamai.com: 3
- checkpoint.com: 3
- forcepoint.com: 3
- nudgesecurity.com: 3
- sentinelone.com: 3
- superblocks.com: 3
- underdefense.com: 3

### Pages cited

- https://acronis.com/en/blog/posts/best-ai-security-tools-smb: 3
- https://forcepoint.com/blog/insights/ai-security-solutions: 3
- https://nudgesecurity.com/post/best-ai-security-tools: 3
- https://aurascape.ai/answers/ai-security-landscape-2026: 2
- https://checkpoint.com/cyber-hub/tools-vendors/best-ai-security-companies-in-2026: 2
- https://concentric.ai/ai-security-tools-top-vendors-compared-in-2026: 2
- https://ethicalhacking.ai/compare: 2
- https://gartner.com/reviews/market/ai-governance-platforms: 2

## 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 27001, SOC 2 Type II, HIPAA, GDPR, CCPA, ISO 42001, 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://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.