Topic starter
24/10/2026 8:47 pm
TL;DR: EDRs can flag suspicious activity quickly, but Cyber Triage says investigations still stall when telemetry is mistaken for forensic evidence and attacker evasion is already common. Endpoint investigations need a separate DFIR collection path to reconstruct what happened before, during, and after an alert.
Editorial analysis by NHI Mgmt Group, based on content published by Cyber Triage: “SOC Forensics: 3 DFIR Gaps All EDRs Have”.
Key questions
Q: Why do attackers target EDR visibility during ransomware incidents?
A: Because detection is the first barrier to containment.
Q: How can security teams tell whether SOC investigations are keeping up?
A: Look for full cross-domain coverage, consistent reasoning across cases, and evidence that medium and low severity alerts are actually investigated.
Q: What breaks when organisations rely on EDR alone for investigations?
A: The investigation usually breaks at evidence depth.
Practitioner guidance
- Separate detection and DFIR workflows Define alert triage as a fast screening process and reserve a distinct investigation path for evidence preservation, reconstruction, and reporting.
- Add a DFIR collection path Capture endpoint state, historical artifacts, and application evidence that EDR streams do not preserve, especially after containment starts.
- Test for EDR evasion blind spots Run controlled assessments that assume attackers will use LOLBin abuse, BYOVD, and sensor interference, then check what evidence remains.
Bottom line: EDR creates useful alerts, but investigations fail when teams confuse telemetry with forensic evidence.
Glossary terms: EDR Telemetry, DFIR Collection, EDR evasion, Forensic Reconstruction
Explore further
View Full Forum → | NHI Foundation Course → | Our Services → | Read the full analysis →
This topic was modified 1 week ago by NHI Mgmt Group
25/10/2026 11:12 am
EDR is a detection control, not an evidence-control system. Many teams still collapse alerting and investigation into one workflow, which creates a structural blind spot once the response moves from triage to reconstruction. The article correctly separates known-bad detection from post-alert analysis, and that distinction should change how incident workflows are designed. Practitioners should treat endpoint telemetry as input, not as the full investigative record.
A question worth separating out:
Q: Should organisations treat EDR and DFIR as the same control?
A: No. EDR and DFIR solve different problems and should be governed separately. EDR is for detection and prioritisation. DFIR is for preservation, reconstruction, and defensible analysis after suspicion exists. Combining them into one mental model causes false confidence, because the control that spots an incident is not necessarily the one that explains it.
👉 Read our full editorial: EDR gaps leave SOC and DFIR teams without full evidence
This post was modified 1 week ago by NHI Mgmt Group