# NetSPI External Attack Surface Management (EASM) vs SurfaceDiff: side-by-side comparison (2026) [NetSPI External Attack Surface Management (EASM)](https://cybersectools.com/tools/netspi-external-attack-surface-management-easm) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [NetSPI](https://cybersectools.com/companies/netspi). [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, Mandiant Attack Surface Management and 4 more. ## Side-by-side comparison | | NetSPI External Attack Surface Management (EASM) | 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 | NetSPI | SurfaceDiff | | Headquarters | – | – | ### Use cases and capabilities | | NetSPI External Attack Surface Management (EASM) | SurfaceDiff | |---|---|---| | Dark Web Monitoring | Yes | – | | 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 **NetSPI External Attack Surface Management (EASM)** 8 features listed. Sign in on the page to see them. **SurfaceDiff** 9 features listed. Sign in on the page to see them. ### Integrations **NetSPI External Attack Surface Management (EASM)** 15 integrations listed. Sign in on the page to see them. **SurfaceDiff** No integrations listed. ## 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. ## NetSPI External Attack Surface Management (EASM) vs SurfaceDiff FAQ Common questions when comparing NetSPI External Attack Surface Management (EASM) vs SurfaceDiff for external attack surface management. ### What is the difference between NetSPI External Attack Surface Management (EASM) and SurfaceDiff? **NetSPI External Attack Surface Management (EASM)**: Continuous discovery, monitoring, and testing of external assets and exposures. Built by NetSPI. **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 NetSPI External Attack Surface Management (EASM) and SurfaceDiff? **NetSPI External Attack Surface Management (EASM)** is made by NetSPI. **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 NetSPI External Attack Surface Management (EASM) a good alternative to SurfaceDiff? Often, yes. NetSPI External Attack Surface Management (EASM) 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 - [NetSPI External Attack Surface Management (EASM) vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-netspi-external-attack-surface-management-easm) - [NetSPI External Attack Surface Management (EASM) vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-netspi-external-attack-surface-management-easm) - [NetSPI External Attack Surface Management (EASM) vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/netspi-external-attack-surface-management-easm-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 NetSPI External Attack Surface Management (EASM) alternatives](https://cybersectools.com/alternatives/netspi-external-attack-surface-management-easm) - [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff) --- Source: https://cybersectools.com/compare/netspi-external-attack-surface-management-easm-vs-surfacediff For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/netspi-external-attack-surface-management-easm.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on NetSPI External Attack Surface Management (EASM) 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