# Attack Surface Scan vs Siemba EASM: 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). [Siemba EASM](https://cybersectools.com/tools/siemba-easm) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Siemba](https://cybersectools.com/companies/siemba). Features, integrations, deployment and the company behind each one, side by side.

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 | Siemba EASM |
|---|---|---|
| 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 | Siemba |
| Headquarters | – | – |

### Use cases and capabilities

| | Attack Surface Scan | Siemba EASM |
|---|---|---|
| DNS Security | Yes | – |
| TLS | Yes | Yes |
| SSL | Yes | – |
| Subdomain Enumeration | Yes | – |
| Security Scanning | Yes | – |
| Alerting | Yes | – |
| Fingerprinting | Yes | – |
| DMARC | Yes | – |
| SPF | Yes | – |
| Security Reporting | Yes | – |
| Misconfiguration | – | Yes |

### Core features

**Attack Surface Scan**

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

**Siemba EASM**

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.

**Siemba EASM**

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

## Attack Surface Scan vs Siemba EASM FAQ

Common questions when comparing Attack Surface Scan vs Siemba EASM for external attack surface management.

### What is the difference between Attack Surface Scan and Siemba EASM?

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

**Siemba EASM**: AI-driven EASM platform for discovering and monitoring external-facing assets. Built by Siemba.

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

### Who makes Attack Surface Scan and Siemba EASM?

**Attack Surface Scan** is made by Attack Surface Scan. **Siemba EASM** is made by Siemba. 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 Siemba EASM?

Often, yes. Attack Surface Scan and Siemba EASM are both External Attack Surface Management products, and both cover TLS. 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 MGM Security Partners recon me](https://cybersectools.com/compare/attack-surface-scan-vs-mgm-security-partners-recon-me)
- [Attack Surface Scan vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/attack-surface-scan-vs-ddactic-attack-surface-discovery)
- [Siemba EASM vs SurfaceDiff](https://cybersectools.com/compare/siemba-easm-vs-surfacediff)
- [Siemba EASM vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-siemba-easm)
- [Siemba EASM vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-siemba-easm)

## Alternatives to each

- [See all Attack Surface Scan alternatives](https://cybersectools.com/alternatives/attack-surface-scan)
- [See all Siemba EASM alternatives](https://cybersectools.com/alternatives/siemba-easm)

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Source: https://cybersectools.com/compare/attack-surface-scan-vs-siemba-easm

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 Siemba EASM: 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