# Attack surface management: what AI models recommend, September 2026

IT AI Recommendation Index, September 2026 Edition. Asked as "attack surface management platform" and as "external attack surface monitoring tool", six framings each, to twelve models with search on, on behalf of a mid-market B2B company. Page: https://it-ai-index.com/security/attack-surface-management/

**Standing:** Intruder leads with 59% of first choices; verdict clear leader. 44 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Intruder | 59% | 3% | 32 |
| 2 | Attaxion | 11% | 5% | 21 |
| 3 | Detectify | 7% | 10% | 29 |
| 4 | Censys ASM | 5% | 54% | 26 |
| 5 | Microsoft Defender External Attack Surface Management | 2% | 23% | 30 |
| 6 | UpGuard BreachSight | 2% | 0% | 14 |
| 7 | CyCognito | 2% | 39% | 31 |
| 8 | Synack | 0% | 0% | 10 |
| 9 | Wiz | 0% | 8% | 13 |
| 10 | Mandiant Attack Surface Management | 0% | 20% | 10 |
| 11 | IBM Randori | 0% | 23% | 13 |
| 12 | Bitsight | 0% | 39% | 18 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Intruder; alternatives CyCognito, Hadrian, UpGuard BreachSight
- GPT-5.4 mini: Rapid7 Surface Command; alternatives Bitsight, Cortex Xpanse, Tenable Attack Surface Management
- Gemini 3.5 Flash: Intruder; alternatives CyCognito, Detectify, runZero
- Perplexity Sonar: Intruder; alternatives Attaxion, ThreatScope
- Grok 4.1 Fast: Intruder; alternatives Microsoft Defender External Attack Surface Management, Rapid7 Exposure Command, UpGuard BreachSight
- Mistral Small: Intruder; alternatives Attaxion, Detectify
- DeepSeek V4 Flash: Intruder; alternatives Attaxion, Detectify, Microsoft Defender External Attack Surface Management, Rapid7 ASM
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Cisco Vulnerability Management; alternatives Censys ASM, Drata, Vanta
- Kimi K2: Intruder; alternatives Censys ASM, Detectify
- GLM 4.7 FlashX: Intruder; alternatives Attaxion, Detectify, Microsoft Defender External Attack Surface Management, Patrowl
- MiniMax M2.5: Intruder; alternatives Attaxion, Detectify, ThreatScope

## Sources the answers cite

65 of 72 answers came back with a source list, from 12 of 12 models. Sites named in the most answers:

- upguard.com: 37 answers, 50 citations
- synack.com: 36 answers, 37 citations
- gartner.com: 27 answers, 47 citations
- bitsight.com: 27 answers, 34 citations
- wiz.io: 26 answers, 30 citations
- cyberbench.net: 26 answers, 27 citations
- attaxion.com: 25 answers, 32 citations
- ionix.io: 21 answers, 30 citations

Pages named in the most answers:

- https://synack.com/blog/best-attack-surface-management-tools (36 answers)
- https://upguard.com/blog/best-attack-surface-management-software-solutions (36 answers)
- https://cyberbench.net/blog/best-easm-platforms-mid-market-2026 (26 answers)
- https://bitsight.com/guides/best-external-attack-surface-management-platforms-for-global-enterprises (25 answers)
- https://gartner.com/reviews/market/external-attack-surface-management (24 answers)
- https://attaxion.com/top-external-attack-surface-management-vendors (22 answers)
- https://wiz.io/academy/cloud-security/attack-surface-management-tools (22 answers)
- https://guideflow.com/blog/attack-surface-management-software (17 answers)
- https://ionix.io/writing-center/best-attack-surface-management-tools-in-2026-a-buyer-s-guide (17 answers)
- https://paloaltonetworks.com/cyberpedia/asm-tools-comparison (15 answers)

## Warned against

- Censys ASM: 14 of 26 labels negative. "Platforms to Approach with Caution ... often priced out of reach for mid-market budgets" (Gemini 3.5 Flash, direct prompt)
- Cortex Xpanse: 18 of 32 labels negative. "skip the heavyweight, six-figure enterprise suites (like *Palo Alto Cortex Xpanse*, which is designed for massive SOCs with budgets to match)" (Gemini 3.5 Flash, scale prompt)
- CyCognito: 12 of 31 labels negative. "Avoid enterprise-focused platforms like Cortex Xpanse or CyCognito unless you have complex multi-entity infrastructure" (Kimi K2, direct prompt)
- Microsoft Defender External Attack Surface Management: 7 of 30 labels negative. "Verdict: Avoid if your environment isn't heavily Azure-centric. Be cautious even if it is, due to the false-positive workload." (DeepSeek V4 Flash, negative prompt)

## 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, September 2026 Edition, it-ai-index.com.