# Attack Surface Scan vs Bitsight External Attack Surface Management: side-by-side comparison (2026)

[Attack Surface Scan](https://cybersectools.com/tools/attack-surface-scan) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Attack Surface Scan](https://cybersectools.com/companies/attack-surface-scan). [Bitsight External Attack Surface Management](https://cybersectools.com/tools/bitsight-external-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Bitsight](https://cybersectools.com/companies/bitsight). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Bitsight External Attack Surface Management](https://cybersectools.com/tools/bitsight-external-attack-surface-management)

Best for: Teams reporting cyber risk to boards and insurers

It earns a place because Bitsight IQ ties each discovered asset to the entity that owns it, and cloud IP addresses sync from AWS, Azure and Google Cloud several times a day. That suits a company with many subsidiaries or suppliers to map. Ask how attribution gets checked, since an asset tied to the wrong entity sends work to the wrong owner.

From [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Attack Surface Scan | Bitsight External Attack Surface Management |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Attack Surface Scan | Bitsight |
| Headquarters | – | – |

### Use cases and capabilities

| | Attack Surface Scan | Bitsight External Attack Surface Management |
|---|---|---|
| DNS Security | Yes | – |
| TLS | Yes | – |
| SSL | Yes | – |
| Subdomain Enumeration | Yes | – |
| Security Scanning | Yes | – |
| Alerting | Yes | – |
| Fingerprinting | Yes | – |
| DMARC | Yes | – |
| SPF | Yes | – |
| Security Reporting | Yes | – |

### Core features

**Attack Surface Scan**

10 features listed. Sign in on the page to see them.

**Bitsight External Attack Surface Management**

10 features listed. Sign in on the page to see them.

### Integrations

**Attack Surface Scan**

9 integrations listed. Sign in on the page to see them.

**Bitsight External Attack Surface Management**

10 integrations listed. Sign in on the page to see them.

## Attack Surface Scan vs Bitsight External Attack Surface Management FAQ

Common questions when comparing Attack Surface Scan vs Bitsight External Attack Surface Management for external attack surface management.

### What is the difference between Attack Surface Scan and Bitsight External Attack Surface Management?

**Attack Surface Scan**: Agentless external attack surface monitoring with continuous change detection, built by Attack Surface Scan.

**Bitsight External Attack Surface Management**: Discovers assets, analyzes risks, and prioritizes vulnerabilities across orgs, built by Bitsight.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Attack Surface Scan and Bitsight External Attack Surface Management?

**Attack Surface Scan** is made by Attack Surface Scan. **Bitsight External Attack Surface Management** is made by Bitsight. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Attack Surface Scan a good alternative to Bitsight External Attack Surface Management?

Often, yes. Attack Surface Scan and Bitsight External Attack Surface Management are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Attack Surface Scan vs SurfaceDiff](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff)
- [Attack Surface Scan vs crt.guru](https://cybersectools.com/compare/attack-surface-scan-vs-crtguru)
- [Attack Surface Scan vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/attack-surface-scan-vs-ddactic-attack-surface-discovery)
- [Bitsight External Attack Surface Management vs SurfaceDiff](https://cybersectools.com/compare/bitsight-external-attack-surface-management-vs-surfacediff)
- [Bitsight External Attack Surface Management vs crt.guru](https://cybersectools.com/compare/bitsight-external-attack-surface-management-vs-crtguru)
- [Bitsight External Attack Surface Management vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/bitsight-external-attack-surface-management-vs-ddactic-attack-surface-discovery)

## Alternatives to each

- [See all Attack Surface Scan alternatives](https://cybersectools.com/alternatives/attack-surface-scan)
- [See all Bitsight External Attack Surface Management alternatives](https://cybersectools.com/alternatives/bitsight-external-attack-surface-management)

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Source: https://cybersectools.com/compare/attack-surface-scan-vs-bitsight-external-attack-surface-management

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/attack-surface-scan.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Attack Surface Scan and Bitsight External Attack Surface Management: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md