# GrayHatWarfare Buckets vs Microsoft Defender EASM: side-by-side comparison (2026) [GrayHatWarfare Buckets](https://cybersectools.com/tools/grayhatwarfare-buckets) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. [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 the one we picked. ### [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 | | GrayHatWarfare Buckets | Microsoft Defender EASM | |---|---|---| | Pricing model | Free | 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 | – | Microsoft | | Headquarters | – | – | ### Use cases and capabilities | | GrayHatWarfare Buckets | Microsoft Defender EASM | |---|---|---| | AWS | Yes | – | ### Core features **GrayHatWarfare Buckets** No features listed. **Microsoft Defender EASM** 10 features listed. Sign in on the page to see them. ### Integrations **GrayHatWarfare Buckets** No integrations listed. **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. - [GrayHatWarfare Buckets](https://cybersectools.com/tools/grayhatwarfare-buckets) fits if you need a free product. ## GrayHatWarfare Buckets vs Microsoft Defender EASM FAQ Common questions when comparing GrayHatWarfare Buckets vs Microsoft Defender EASM for external attack surface management. ### What is the difference between GrayHatWarfare Buckets and Microsoft Defender EASM? **GrayHatWarfare Buckets**: A search engine for open Amazon S3 buckets and their contents, allowing users to search for files using keywords, filename extensions, and full path. **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. ### Is GrayHatWarfare Buckets a good alternative to Microsoft Defender EASM? Often, yes. GrayHatWarfare Buckets and Microsoft Defender EASM are both External Attack Surface Management products. Key differences: GrayHatWarfare Buckets is Free while Microsoft Defender EASM is Commercial. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [GrayHatWarfare Buckets vs Intruder Attack Surface Management](https://cybersectools.com/compare/grayhatwarfare-buckets-vs-intruder-attack-surface-management) - [GrayHatWarfare Buckets vs Outpost24 External Attack Surface Management](https://cybersectools.com/compare/grayhatwarfare-buckets-vs-outpost24-external-attack-surface-management) - [GrayHatWarfare Buckets vs StrikeOne Attack Surfa](https://cybersectools.com/compare/grayhatwarfare-buckets-vs-strikeone-attack-surfa) - [Microsoft Defender EASM vs Intruder Attack Surface Management](https://cybersectools.com/compare/intruder-attack-surface-management-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) - [Microsoft Defender EASM vs StrikeOne Attack Surfa](https://cybersectools.com/compare/microsoft-defender-external-attack-surface-management-vs-strikeone-attack-surfa) ## Alternatives to each - [See all GrayHatWarfare Buckets alternatives](https://cybersectools.com/alternatives/grayhatwarfare-buckets) - [See all Microsoft Defender EASM alternatives](https://cybersectools.com/alternatives/microsoft-defender-external-attack-surface-management) --- Source: https://cybersectools.com/compare/grayhatwarfare-buckets-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/grayhatwarfare-buckets.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on GrayHatWarfare Buckets 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