Product Comparison
Noxys vs Nightfall AI: AI Data Security Compared
Nightfall AI is an AI-native DLP platform protecting data across SaaS, endpoints, email, and AI apps. Noxys is a European AI Firewall focused on shadow AI governance and EU AI Act compliance. Choose Nightfall for broad SaaS DLP with AI-powered detection; choose Noxys for AI-specific governance with European sovereignty.
TL;DR
Nightfall AI is an AI-native DLP platform protecting data across SaaS, endpoints, email, and AI apps. Noxys is a European AI Firewall focused on shadow AI governance and EU AI Act compliance. Choose Nightfall for broad SaaS DLP with AI-powered detection; choose Noxys for AI-specific governance with European sovereignty.
Comparison Table
| Criteria | Noxys | Nightfall AI |
|---|---|---|
| Focus | AI Firewall | AI-Native DLP Platform |
| Shadow AI discovery | Yes, 15+ platforms | Yes (browser plugin) |
| PII detection | < 10ms, browser-level | 95% accuracy, LLM-based classification |
| EU AI Act compliance | Built-in module | No |
| Data residency | 100% EU | US-based (AWS) |
| SaaS DLP (Slack, Teams, etc.) | No | Yes (core strength) |
| Email DLP | No | Yes |
| API integration | Yes | Yes (extensive) |
| Deployment time | Minutes | Days |
| Pricing | Free tier, from 8 EUR/user/mo | Custom (subscription-based) |
| Best for | EU AI governance | Broad SaaS data protection |
AI Data Protection Approach
Nightfall relies on 100+ AI detection models and LLM file classifiers to achieve 95% detection accuracy. Its coverage is broad: SaaS applications, endpoints, email, cloud storage, and APIs. The approach is built on analysing data after it has transited through Nightfall's infrastructure.
Noxys takes a different posture: prompt interception happens at the browser level, before data leaves the user's endpoint. Detection operates in under 10ms, directly in the context of the AI tool being used. Both approaches are technically sound; they operate on distinct perimeters and are not in competition.
SaaS Coverage
SaaS coverage is Nightfall's central strength. The platform protects data in Slack, Microsoft Teams, Jira, Confluence, GitHub, Google Workspace, and many other enterprise applications. For organisations where data leakage risk is concentrated in collaborative SaaS tools, Nightfall is a proven solution.
Noxys does not cover SaaS DLP. Its perimeter is exclusively focused on interactions with AI tools — ChatGPT, Claude, Gemini, Mistral, Copilot, Perplexity, and the 15+ AI platforms automatically detected. If your priority is protecting Slack or Google Drive, Nightfall is the right choice. If your priority is governing your employees' AI usage, Noxys is the right complement.
EU AI Act Compliance
Noxys includes a dedicated EU AI Act compliance module with applicable article mapping, full audit trail, risk scoring per AI tool, and report generation for audits. This module was designed from the ground up to address the requirements of the EU AI Act, which entered application in 2025.
Nightfall does not offer features specific to the EU AI Act. Its platform is oriented toward GDPR, HIPAA, PCI-DSS, and US sector compliance. For European enterprises subject to the EU AI Act, this is a significant gap that Noxys addresses directly.
European Sovereignty
Noxys is a French company (Noxys Security SAS), hosted 100% in Europe, with zero dependency on AWS, GCP, or Azure. Your employees' data never leaves European infrastructure. This is a non-negotiable prerequisite for many enterprises subject to GDPR, the EU AI Act, and the digital sovereignty policies of their industries.
Nightfall is a US company headquartered in San Francisco. Data is processed on AWS infrastructure, primarily in the United States. Nightfall offers GDPR-compliant DPAs, but the transfer of data to a third country under GDPR Article 44 remains a legal risk element that each DPO must assess. For enterprises in healthcare, finance, defence, or critical infrastructure, this point may be disqualifying.
Detection Technology
Nightfall invests heavily in detection sophistication: 100+ AI detection models, computer vision for images and screenshots, LLM classifiers for unstructured files. Accuracy reaches 95% according to Nightfall's published benchmarks. For organisations with large volumes of unstructured data to classify, this is a distinctive strength.
Noxys focuses on real-time detection at the browser level in AI prompt contexts. Latency is under 10ms, enabling pre-send interception without perceptible friction for the user. The policy engine allows blocking, coaching, or logging based on granular rules by department, by AI tool, and by data type. These two detection approaches address different needs and can coexist without conflict.
Who Should Choose Noxys
- European enterprises subject to the EU AI Act or wanting to get ahead of its audit and traceability requirements.
- Organisations whose employees actively use ChatGPT, Claude, Gemini, or other consumer AI tools without formal governance.
- CISOs and CIOs wanting immediate visibility into shadow AI without a lengthy integration project: deployment in minutes via browser extension.
- Enterprises in finance, healthcare, legal, or defence where data residency in Europe is a non-negotiable requirement.
- Organisations looking for a budget-controlled option, with a free plan for up to 10 users and pricing starting at 8 EUR per user per month.
Who Should Choose Nightfall
- Organisations with heavy use of collaborative SaaS applications — Slack, Google Workspace, Jira, GitHub — where protecting data within those channels is the primary concern.
- Enterprises needing DLP protection covering email, endpoints, and cloud storage in addition to AI interactions.
- Organisations that process large volumes of unstructured files (images, PDFs, documents) and need sophisticated LLM and computer-vision-based content classification.
- US or multinational enterprises whose compliance requirements are primarily oriented toward HIPAA, PCI-DSS, and US sector regulation.
AI governance and EU AI Act compliance — in minutes
Deploy Noxys in under 10 minutes. Free plan for up to 10 users. No credit card required. 100% EU-hosted.
FAQ
Are Noxys and Nightfall complementary?
Yes. The two tools address different blind spots. Nightfall monitors data flows inside your SaaS applications — Slack, Google Workspace, GitHub, Jira. Noxys monitors your employees' interactions with AI tools in the browser — ChatGPT, Claude, Gemini, Copilot. If you already use Nightfall for SaaS protection and want to cover shadow AI while achieving EU AI Act compliance, Noxys is a direct complement with no redundancy.
Does Nightfall cover AI tool interactions?
Nightfall offers a browser plugin that can detect sensitive data in some AI applications. However, its approach remains centred on data classification inside existing SaaS apps rather than real-time AI behaviour governance or EU AI Act compliance. Noxys intercepts prompts directly at the browser level, before data leaves the endpoint, with sub-10ms latency and a granular per-department, per-tool policy engine.
How do I migrate from Nightfall to Noxys, or run both?
If you want to replace Nightfall, Noxys covers AI governance and shadow AI but does not replace SaaS DLP for Slack, Google Workspace, or GitHub — you will need to assess whether that gap is acceptable for your organisation. If you want to run both in parallel, there is no conflict: each tool operates within its own perimeter. Deploying Noxys takes under 10 minutes via the browser extension; no changes to your existing Nightfall configuration are needed. Contact [email protected] for guided onboarding.