# SurfaceDiff vs Zerofox External Attack Surface Management: side-by-side comparison (2026) [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). [Zerofox External Attack Surface Management](https://cybersectools.com/tools/zerofox-external-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [ZeroFox](https://cybersectools.com/companies/zerofox). 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 | | SurfaceDiff | Zerofox 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 | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | SurfaceDiff | ZeroFox | | Headquarters | – | – | ### Use cases and capabilities | | SurfaceDiff | Zerofox External Attack Surface Management | |---|---|---| | 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 | – | | Dark Web Monitoring | – | Yes | ### Core features **SurfaceDiff** 9 features listed. Sign in on the page to see them. **Zerofox External Attack Surface Management** 10 features listed. Sign in on the page to see them. ### Integrations **SurfaceDiff** No integrations listed. **Zerofox External Attack Surface Management** 42 integrations 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. ## SurfaceDiff vs Zerofox External Attack Surface Management FAQ Common questions when comparing SurfaceDiff vs Zerofox External Attack Surface Management for external attack surface management. ### What is the difference between SurfaceDiff and Zerofox External Attack Surface Management? **SurfaceDiff**: Continuous external attack surface monitoring that shows what changed between scans. Built by SurfaceDiff. **Zerofox External Attack Surface Management**: Discovers and manages internet-facing assets with vulnerability prioritization. Built by ZeroFox. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes SurfaceDiff and Zerofox External Attack Surface Management? **SurfaceDiff** is made by SurfaceDiff. **Zerofox External Attack Surface Management** is made by ZeroFox. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is SurfaceDiff a good alternative to Zerofox External Attack Surface Management? Often, yes. SurfaceDiff and Zerofox 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 - [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) - [Zerofox External Attack Surface Management vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-zerofox-external-attack-surface-management) - [Zerofox External Attack Surface Management vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-zerofox-external-attack-surface-management) - [Zerofox External Attack Surface Management vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/trickest-asm-attack-surface-management-vs-zerofox-external-attack-surface-management) ## Alternatives to each - [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff) - [See all Zerofox External Attack Surface Management alternatives](https://cybersectools.com/alternatives/zerofox-external-attack-surface-management) --- Source: https://cybersectools.com/compare/surfacediff-vs-zerofox-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/surfacediff.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on SurfaceDiff and Zerofox 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