Microsoft Defender for Business vs NSAuditor AI
Microsoft Defender for Business
microsoft.comNSAuditor AI
nsauditor.comSide by side
| Figure | Microsoft Defender for Business | NSAuditor AI |
|---|---|---|
| Price from | $0.25/mo | $39.17/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 8 |
| Spec score · Vulnerability Scanning Software | 8.8 (#4) | 9.2 (#2) |
| Headquarters | Redmond, Washington, United States | Las Vegas, Nevada, USA |
| Support | Microsoft's Defender for Business documentation provides a guide for getting help or contacting support. | Pro includes email support with a stated 48-hour SLA, while Enterprise includes a dedicated support channel and onboarding call. |
Plans
Microsoft Defender for Business
- Microsoft Defender for Business$3 a month
- Microsoft Entra Internet Access$5 a month
- Microsoft Entra Suite$12 a month
- Microsoft Defender for Business$3 a year
NSAuditor AI
- CommunityFree
- Pro (monthly)$49 a month
- Pro monthly$49 a month
- Pro (annual)$470 a year
- Pro annual$470 a year
- Enterprise Base$2,000 a year
- Enterprise Growth$5,000 a year
- Enterprise Scale$10,000 a year
In their own words
Microsoft Defender for Business
Microsoft Defender for Business has no write-up on Specifiction yet; its figures are above.
NSAuditor AI
NSAuditor AI is an open-core network security audit platform that runs on customer infrastructure across Windows, macOS and Linux. Its agentless scans read configuration and metadata without requiring create, write, modify or delete permissions. The product supports air-gapped environments, offline licensing and zero-data-exfiltration operation. All tiers support AI analysis with OpenAI, Claude or Ollama using customer-provided API keys. Reports can be exported in formats including JSON, HTML, SARIF, CSV and Markdown, depending on edition. Pro adds offline NVD CVE matching and exploit-first prioritization using CISA KEV and FIRST EPSS data from customer-populated stores. Enterprise provides 28 cloud auditors across AWS, GCP and Azure, and maps scans to eight compliance frameworks. Community is free; Pro is listed at $39 a year or $49 a month. Enterprise plans cost $2000.00, $5000.00 or $10,000 a year. Community support is self-serve, while paid tiers add email, onboarding or dedicated support options.