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Network Defense

GATEWATCHER NDR

Network Detection & Response

AI-powered network detection and response delivering deep packet inspection and behavioural analysis across your entire network — detecting advanced threats that evade endpoint and perimeter controls, including encrypted traffic analysis.

NDRDeep Packet InspectionEncrypted Traffic AnalysisThreat Hunting
Domain
Network Defense
Deployment
On-Premises · Cloud · Hybrid
Inspection
North-South · East-West · Encrypted
Origin
France · EU-based · ANSSI certified
All Vendors→Network Defense
Network Defense

GATEWATCHER NDR

Network Detection & Response · ANSSI Certified

AI-powered NDR with deep packet inspection and encrypted traffic analysis — detecting advanced threats including east-west lateral movement that endpoint tools never see.

NDREncrypted TrafficOT SupportEU Sovereign
About Gatewatcher

See Everything Moving Across Your Network — Including What's Hidden

Gatewatcher's NDR platform analyses all network traffic — north-south perimeter flows, east-west lateral movement, and encrypted sessions — using multiple AI engines simultaneously. It detects threats that endpoint agents miss, identifies attacker behaviour patterns that signature-based tools cannot, and provides the network context SIEM teams need to investigate faster.

As a French vendor certified by ANSSI, Gatewatcher is particularly relevant for European organisations with data sovereignty requirements who need a credible alternative to US-dominated network security vendors.

Why Mellivor Partners With Gatewatcher
Multiple AI detection engines running simultaneously — ML, deep learning, and behavioural analysis combined
Encrypted traffic analysis without SSL decryption — critical for privacy-sensitive European organisations
ANSSI-certified, EU data sovereignty compliant — important for government and regulated sector clients
Native OT protocol support — detects threats in IT/OT convergence environments alongside Soteryan
Key Capabilities
Multi-Engine AI Detection
Simultaneous detection across machine learning, deep learning, and rule-based engines — each catching different threat types for maximum coverage without alert flooding.
Encrypted Traffic Analysis
Identifies malicious patterns in TLS/SSL traffic using metadata and behavioural fingerprinting — without decrypting sessions or breaking privacy compliance.
East-West Lateral Movement Detection
Monitors internal network segments catching attacker lateral movement — the traffic between compromised and target hosts that perimeter tools never see.
OT / ICS Network Visibility
Native support for OT protocols including Modbus, DNP3, and PROFINET — detecting threats crossing the IT/OT boundary in industrial environments.
SIEM & SOAR Integration
Exports enriched alerts and network telemetry to SIEM platforms and triggers SOAR playbooks — adding network context to every security incident.
How We Deploy It

When Mellivor Recommends Gatewatcher

01
Blind Spot Elimination
Organisations with endpoint and perimeter security but no east-west network visibility — the blind spot most advanced threat actors exploit for lateral movement and dwell time.
02
EU Data Sovereignty Requirements
European government, defence, and regulated sector organisations requiring a network detection solution with EU data residency, ANSSI certification, and no US cloud dependency.
03
IT/OT Convergence Environments
Industrial organisations where IT and OT networks are converging and traditional NDR tools lack OT protocol support — Gatewatcher sees both environments in a single platform.
Often Deployed With

See Everything Moving Across Your Network — Including What's Hidden

Multiple simultaneous AI detection engines. Encrypted traffic analysis without SSL decryption — critical for EU privacy compliance. Native OT protocol support. ANSSI certified, EU data residency. The network blind spot most advanced attackers exploit — closed.

Multi-Engine AI Detection
ML, deep learning, and rule-based engines running simultaneously — each catching different threat types.
Encrypted Traffic Analysis
Identifies malicious TLS patterns via metadata and behavioural fingerprinting — no SSL decryption.
East-West Lateral Movement
Internal segment monitoring catching attacker movement between compromised and target hosts.
OT / ICS Network Visibility
Native Modbus, DNP3, and PROFINET support — detects threats crossing the IT/OT boundary.
Often Deployed With

Close Your Network Blind Spot

Network architecture review, sensor placement, SIEM integration, and EU data residency — all included.

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Get Started with Gatewatcher

Close Your Network Blind Spot

Our network security specialists will assess your current visibility gaps, design the Gatewatcher tap and sensor architecture, and integrate detections with your SIEM — giving you east-west visibility from day one.

Network architecture review
We map your network topology to identify optimal tap and sensor placement for maximum coverage.
SIEM integration & tuning
Full integration with your SIEM with alert tuning to eliminate noise before it reaches your analysts.
EU deployment assured
All data processed within EU infrastructure — no data leaves your jurisdiction.

Enterprise cybersecurity solutions across 22 technology partners and 12 security domains.

© 2026 Mellivor Cybersecurity Ltd. All rights reserved.
mellivorsecurity.com

Enterprise cybersecurity solutions across 22 technology partners and 12 security domains.

© 2026 Mellivor Cybersecurity Ltd. All rights reserved.