# SecurityScorecard External Attack Surface Management vs SurfaceDiff: side-by-side comparison (2026)

[SecurityScorecard External Attack Surface Management](https://cybersectools.com/tools/securityscorecard-external-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [SecurityScorecard](https://cybersectools.com/companies/securityscorecard). [SurfaceDiff](https://cybersectools.com/tools/surfacediff) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [SurfaceDiff](https://cybersectools.com/companies/surfacediff). 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, Google Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | SecurityScorecard External Attack Surface Management | SurfaceDiff |
|---|---|---|
| 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 | Startup, SMB, Mid-Market, Enterprise |
| Company | SecurityScorecard | SurfaceDiff |
| Headquarters | – | – |

### Use cases and capabilities

| | SecurityScorecard External Attack Surface Management | SurfaceDiff |
|---|---|---|
| DNS Security | – | Yes |
| Port Scanning | – | Yes |
| TLS | – | Yes |
| Subdomain Enumeration | – | Yes |
| Network Scanning | – | Yes |
| Security Scanning | – | Yes |
| Alerting | – | Yes |
| Reconnaissance | – | Yes |
| Visibility | – | Yes |
| Web Security | – | Yes |

### Core features

**SecurityScorecard External Attack Surface Management**

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

**SurfaceDiff**

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

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [SurfaceDiff](https://cybersectools.com/tools/surfacediff) fits if you are a startup.

## SecurityScorecard External Attack Surface Management vs SurfaceDiff FAQ

Common questions when comparing SecurityScorecard External Attack Surface Management vs SurfaceDiff for external attack surface management.

### What is the difference between SecurityScorecard External Attack Surface Management and SurfaceDiff?

**SecurityScorecard External Attack Surface Management**: Monitors external attack surface to identify assets and vulnerabilities, built by SecurityScorecard.

**SurfaceDiff**: Continuous external attack surface monitoring that shows what changed between scans, built by SurfaceDiff.

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

### Who makes SecurityScorecard External Attack Surface Management and SurfaceDiff?

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

### Is SecurityScorecard External Attack Surface Management a good alternative to SurfaceDiff?

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

## Related comparisons

- [SecurityScorecard External Attack Surface Management vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-securityscorecard-external-attack-surface-management)
- [SecurityScorecard External Attack Surface Management vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-securityscorecard-external-attack-surface-management)
- [SecurityScorecard External Attack Surface Management vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/securityscorecard-external-attack-surface-management-vs-trickest-asm-attack-surface-management)
- [SurfaceDiff vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-surfacediff)
- [SurfaceDiff vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff)
- [SurfaceDiff vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/surfacediff-vs-trickest-asm-attack-surface-management)

## Alternatives to each

- [See all SecurityScorecard External Attack Surface Management alternatives](https://cybersectools.com/alternatives/securityscorecard-external-attack-surface-management)
- [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff)

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Source: https://cybersectools.com/compare/securityscorecard-external-attack-surface-management-vs-surfacediff

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

More on SecurityScorecard External Attack Surface Management and SurfaceDiff: 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