Topic starter
25/10/2026 10:58 am
TL;DR: Agentic SOC response needs network telemetry because encrypted traffic, agentless assets, lateral movement, and data exfiltration still surface there, according to Stellar Cyber. Autonomous workflows need that visibility to validate alerts and avoid acting on partial evidence.
Editorial analysis by NHI Mgmt Group, based on content published by Stellar Cyber: “NDR is a Requirement for Modern Security Defenses and the Agentic SOC”.
By the numbers:
- The average industrial enterprise still cannot identify 30% of the devices connected to its primary production network, according to McKinsey & Company research cited by Stellar Cyber.
- IDC's 2026 Worldwide Semiannual IoT Spending Guide projects that global spending on IoT/OT will cross the $1.1 trillion mark by the end of 2026.
Key questions
Q: Why do encrypted connections not eliminate network detection value?
A: Encryption hides payloads, but it does not remove flow, timing, destination, volume, and protocol evidence.
Q: What breaks when an environment relies on endpoint tools alone?
A: Coverage breaks wherever assets cannot host agents or where attackers disable them.
Q: How should security teams use network telemetry in an agentic SOC?
A: Use it as a validation layer, not just a detection feed.
Practitioner guidance
- Define NDR as a required telemetry layer for blind-spot environments Make network telemetry mandatory for segments that include OT, IoT, appliances, and other agentless assets, rather than treating EDR as sufficient coverage.
- Baseline normal traffic by segment and protocol Create traffic baselines for internal movement, external destinations, and protocol use so low-and-slow lateral movement stands out against expected behaviour.
- Use network evidence to validate autonomous triage Require AI-assisted SOC workflows to cross-check endpoint alerts against actual traffic before they isolate hosts, alter firewall rules, or escalate incidents.
Bottom line: Network detection and response remains relevant because it sees classes of devices and attack behaviour that endpoint-centric tooling can miss.
Glossary terms: Network Detection and Response (NDR), Agentless Asset, Lateral Movement, Encrypted Traffic Analysis
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This topic was modified 7 days ago by NHI Mgmt Group
27/10/2026 7:17 pm
NDR is not a legacy comfort control, it is a governance control for environments with blind spots. The article is right to reject the idea that EDR alone can cover routers, appliances, and OT devices. When an asset cannot host an agent, the network becomes the only shared evidence layer for identity, behaviour, and movement. That makes NDR part of control design, not just detection tooling, and it is especially relevant where shadow AI and AI agent discovery is not the only discovery problem. Practitioners should treat network telemetry as a mandatory governance input wherever coverage gaps exist.
A question worth separating out:
Q: How should organisations decide between NDR and EDR coverage?
A: They should not treat them as substitutes. EDR is strongest at endpoint behaviour, while NDR is stronger where the asset is agentless, the traffic is the signal, or the attacker is moving laterally and hiding in network behaviour. Mature programmes use both so one control can validate the other.
👉 Read our full editorial: Network telemetry remains critical for agentic SOC detection and response
This post was modified 7 days ago by NHI Mgmt Group