# Microsoft Defender External Attack Surface Management: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 56 judge labels across 1 category by 14 of 14 models. Page: https://www.gane.ai/index/it/vendors/microsoft-defender-external-attack-surface-management

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Attack surface management](https://www.gane.ai/index/it/security/attack-surface-management/index.md) | 6% | 4 | 11% | 56 |

## What the models said for it

- "If you already use CrowdStrike or Microsoft 365/Azure: Start a Proof of Concept (PoC) with Microsoft Defender EASM" (Gemini 3.5 Flash, ASM)
- "For most modern enterprises, CyCognito and Microsoft EASM are currently leading the market" (Qwen 3.7 Flash, ASM)
- "Microsoft Defender External Attack Surface Management is often the most pragmatic starting point" (GLM 4.7 FlashX, ASM)
- "I'd start with Microsoft Defender EASM—if you already use Azure or Microsoft security tools." (GPT-6 Luna, ASM)

## And against it

- "Better suited for organizations heavily invested in Microsoft stack" (Kimi K2, ASM)
- "Complex to configure (typical Microsoft complexity), generates significant false positives, requires existing Microsoft licensing" (Kimi K2, ASM)
- "Strongly Azure/Microsoft-centric—poor fit if you're not heavily invested in their ecosystem" (Grok 4.20, ASM)
- "be cautious if your environment is multi-cloud or you need strong non-Microsoft workflows" (Perplexity Sonar, ASM)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 3 | 1 | 0 | 4 |
| GPT-5.4 mini | 0 | 2 | 1 | 0 | 3 |
| Gemini 3.5 Flash | 1 | 2 | 0 | 0 | 3 |
| Perplexity Sonar | 0 | 4 | 0 | 1 | 5 |
| Grok 4.20 | 0 | 2 | 2 | 1 | 5 |
| Mistral Small | 0 | 3 | 0 | 0 | 3 |
| DeepSeek V4 Flash | 0 | 2 | 0 | 2 | 4 |
| Llama 4 Maverick | 0 | 2 | 3 | 0 | 5 |
| Qwen 3.7 Flash | 1 | 2 | 0 | 0 | 3 |
| Kimi K2 | 0 | 3 | 0 | 2 | 5 |
| GLM 4.7 FlashX | 1 | 2 | 1 | 0 | 4 |
| MiniMax M2.5 | 0 | 2 | 2 | 0 | 4 |
| GPT-6 Luna | 1 | 2 | 1 | 0 | 4 |
| Muse Glimmer 30B | 0 | 3 | 1 | 0 | 4 |

## Sources returned with these answers

The sites and pages cited by the answers that named Microsoft Defender External Attack Surface Management, from 158 of the 161 answers that named it (only the models that return a source list).

### Domains cited

- upguard.com: 79
- cyble.com: 74
- g2.com: 55
- attaxion.com: 45
- checkpoint.com: 42
- paloaltonetworks.com: 40
- circleid.com: 33
- cybersectools.com: 33
- cycognito.com: 32
- synack.com: 32

### Pages cited

- https://cyble.com/knowledge-hub/top-attack-surface-management-services: 74
- https://upguard.com/blog/attack-surface-management-vendors-compared: 61
- https://attaxion.com/top-external-attack-surface-management-vendors: 42
- https://checkpoint.com/cyber-hub/tools-vendors/best-attack-surface-management-platforms-2026: 40
- https://circleid.com/posts/best-attack-surface-monitoring-tools: 32
- https://cybersectools.com/resources/shortlists/best-attack-surface-tools: 32
- https://synack.com/blog/best-attack-surface-management-tools: 31
- https://guideflow.com/blog/attack-surface-management-software: 30

## In its own words

What Microsoft Defender External Attack Surface Management's own pages state, read 2026-09-28. Stated by the vendor, not checked by the index.


## 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.