
Sophos Firewall
The natural pair. NDR sees what the firewall can’t (internal segments, encrypted-traffic anomalies); the firewall blocks what NDR detects.
Sophos NDR continuously analyzes east-west and north-south traffic to surface compromised hosts, command-and-control activity, and the lateral-movement patterns that signature-based defenses miss. Detections flow directly into Sophos XDR so analysts see the full attack chain in one workflow.
Firewalls inspect what crosses the perimeter. EDR sees what runs on managed hosts. NDR covers the gap: everything in between, including the traffic that never reaches a Sophos-protected device.
See lateral movement, internal recon, and server-to-server traffic that never touches the perimeter firewall. The blind spot where most breaches actually unfold.
Two complementary AI engines: a deep-learning model for known-bad pattern recognition, and a behavioural engine that learns your network’s baseline and flags drift.
Detect malicious patterns inside TLS-encrypted sessions without decrypting them, using flow metadata, JA3/JA4 fingerprints, and encrypted DNS heuristics.
DNS tunneling, beaconing patterns, and outbound data-staging activity get flagged automatically, even when the traffic is encrypted or hidden in legitimate channels.
IoT devices, contractor laptops, printers, OT/SCADA equipment - anything that can’t run an endpoint agent. NDR sees them all on the network.
NDR detections appear inside Sophos XDR cases alongside endpoint, firewall, email, and identity events. One investigation workflow, no console switching.
A typical breach has three phases the network sees clearly. Most security stacks see two of them and lose the third in a blind spot.
NDR is rarely the first product organizations buy. It’s usually the one they add after their first incident reveals how much traffic was happening that nobody could see.
IoT devices, printers, contractor laptops, OT/SCADA equipment that can’t run an EDR agent. NDR doesn’t care - it sees them all as traffic on the wire.
Coverage for every deviceRegulated environments need detection on internal segments, not just at the perimeter. NDR satisfies the “monitoring across the protected enclave” requirement most frameworks bake in.
Segmentation monitoring coveredAfter a breach, the question is always “how long was the attacker inside?” NDR gives you the answer next time - and produces the dwell-time evidence boards, auditors, and insurance carriers ask for.
Dwell-time visibilityNDR is most valuable as part of a broader detection program. These are the products it pairs with most often.

The natural pair. NDR sees what the firewall can’t (internal segments, encrypted-traffic anomalies); the firewall blocks what NDR detects.

NDR detections are most valuable inside an XDR investigation, correlated with endpoint, identity, and cloud events. XDR is where the story comes together.

If you’d rather have a team watch the NDR feed for you, Sophos MDR includes 24/7 monitoring and investigation of NDR alongside the rest of the Sophos stack.
Trial Sophos NDR against a live network segment, request appliance-based pricing, or talk to our team about placing NDR sensors at the right collection points for your topology.