# Mandiant Attack Surface Management vs Microsoft Defender EASM: side-by-side comparison (2026) [Mandiant Attack Surface Management](https://cybersectools.com/tools/mandiant-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Google](https://cybersectools.com/companies/google). [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Microsoft](https://cybersectools.com/companies/microsoft). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about each one. ### [Mandiant Attack Surface Management](https://cybersectools.com/tools/mandiant-attack-surface-management) Best for: Teams wanting threat intel-backed exposure checks It earns a place because its checks test whether an exposure can be exploited, not only whether it exists. Role-based access for subsidiaries suits a group with several companies under one roof. Ask how often active checks will run on your assets, since that decides how fast a new exposure shows up. From [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions), Fall 2026. ### [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management) Best for: Microsoft shops adding external asset discovery It belongs here if you already pay for Microsoft security, because discovered assets can move into Defender for Cloud and Copilot in Azure turns plain questions into inventory searches. It fits companies from small to enterprise. Its features center on discovery and flagging, so ask whether you also need active testing to prove which exposures are real. 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 | | Mandiant Attack Surface Management | Microsoft Defender EASM | |---|---|---| | Pricing model | Commercial | Commercial | | Category | External Attack Surface Management | External Attack Surface Management | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Google | Microsoft | | Headquarters | – | – | ### Use cases and capabilities | | Mandiant Attack Surface Management | Microsoft Defender EASM | |---|---|---| | RBAC | Yes | – | ### Core features **Mandiant Attack Surface Management** 10 features listed. Sign in on the page to see them. **Microsoft Defender EASM** 10 features listed. Sign in on the page to see them. ### Integrations **Mandiant Attack Surface Management** 5 integrations listed. Sign in on the page to see them. **Microsoft Defender EASM** 4 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. - [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management) fits if you are a small business. ## Mandiant Attack Surface Management vs Microsoft Defender EASM FAQ Common questions when comparing Mandiant Attack Surface Management vs Microsoft Defender EASM for external attack surface management. ### What is the difference between Mandiant Attack Surface Management and Microsoft Defender EASM? **Mandiant Attack Surface Management**: Discovers and monitors external internet assets for exposures and vulnerabilities. Built by Google. **Microsoft Defender EASM**: Discovers and monitors external-facing assets and vulnerabilities. Built by Microsoft. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Mandiant Attack Surface Management and Microsoft Defender EASM? **Mandiant Attack Surface Management** is made by Google. **Microsoft Defender EASM** is made by Microsoft. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Mandiant Attack Surface Management a good alternative to Microsoft Defender EASM? Often, yes. Mandiant Attack Surface Management and Microsoft Defender EASM are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Mandiant Attack Surface Management vs Synack Attack Surface Discovery](https://cybersectools.com/compare/mandiant-attack-surface-management-vs-synack-attack-surface-discovery) - [Mandiant Attack Surface Management vs DNS Assistant](https://cybersectools.com/compare/dns-assistant-vs-mandiant-attack-surface-management) - [Mandiant Attack Surface Management vs Outpost24 External Attack Surface Management](https://cybersectools.com/compare/mandiant-attack-surface-management-vs-outpost24-external-attack-surface-management) - [Microsoft Defender EASM vs Synack Attack Surface Discovery](https://cybersectools.com/compare/microsoft-defender-external-attack-surface-management-vs-synack-attack-surface-discovery) - [Microsoft Defender EASM vs DNS Assistant](https://cybersectools.com/compare/dns-assistant-vs-microsoft-defender-external-attack-surface-management) - [Microsoft Defender EASM vs Outpost24 External Attack Surface Management](https://cybersectools.com/compare/microsoft-defender-external-attack-surface-management-vs-outpost24-external-attack-surface-management) ## Alternatives to each - [See all Mandiant Attack Surface Management alternatives](https://cybersectools.com/alternatives/mandiant-attack-surface-management) - [See all Microsoft Defender EASM alternatives](https://cybersectools.com/alternatives/microsoft-defender-external-attack-surface-management) --- Source: https://cybersectools.com/compare/mandiant-attack-surface-management-vs-microsoft-defender-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/mandiant-attack-surface-management.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Mandiant Attack Surface Management and Microsoft Defender 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