Nightfall AI vs Microsoft Purview DLP
A side-by-side comparison on deployment model, data residency, licensing basis and security coverage. Structural facts are verifiable against vendor documentation; the scored dimensions are our assessment.
Nightfall AI
Nightfall AI
6.8
Average across eight dimensions
- Deployment
- SaaS only
- Licensing
- Per user or API volume
- Time to value
- Fast
- Segment
- SMB / mid-market
- G2
- —
Microsoft Purview DLP
Microsoft
7.2
Average across eight dimensions
- Deployment
- SaaS only
- Licensing
- M365 E5 Compliance tier
- Time to value
- Medium
- Segment
- Enterprise
- G2
- —
Score by dimension
| Dimension | NF | MP |
|---|---|---|
| Data residency control | 2 | 2 |
| Pricing value | 6.5 | 8 |
| Detection accuracy | 8 | 7.5 |
| Response speed | 7.5 | 8 |
| Ease of setup | 8.5 | 8 |
| Management UX | 8 | 8 |
| Integration depth | 7.5 | 9 |
| Security coverage | 6.5 | 7.5 |
Nightfall AI
- +Machine learning classification performs well on unstructured content
- +API-first design makes it straightforward to embed in custom applications
- +Fast to connect to common SaaS tools without agents
- −SaaS only — content is sent to Nightfall for inspection
- −Endpoint and network channel coverage is minimal; this is SaaS-focused
Best for Engineering-led teams protecting data inside SaaS and custom applications
Watch out Not a replacement for endpoint or network DLP — scope it accordingly
Microsoft Purview DLP
- +Effectively included for organisations already licensed for M365 E5 Compliance
- +Native coverage of Exchange, SharePoint, OneDrive and Teams with no connectors to build
- +Policies follow the label, so classification and protection stay attached to the file
- −Coverage outside the Microsoft estate is thin — third-party SaaS and non-Windows endpoints lag
- −No on-premises option; inspection happens in Microsoft's cloud
Best for Microsoft-centric organisations whose sensitive data lives in M365
Watch out If material data sits outside Microsoft, this leaves real gaps
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Other comparisons
Data last verified 2026-09-16. nPro publishes this comparison. Where nPro appears as one of the platforms listed, its card is marked and its scores are our own assessment. Third-party review scores are sourced from public vendor profiles. Structural facts — deployment model, licensing basis, residency — are verifiable against each vendor's documentation.