Topic starter
11/07/2026 2:01 pm
TL;DR: Legacy antivirus relies on signatures and file-based detection, which leaves gaps against polymorphic, fileless, and human-operated attacks that can start with compromised credentials or RCE, according to SentinelOne. EDR shifts the control plane toward runtime visibility, response, and hunting, making endpoint telemetry and automation more important than static blocking.
Editorial analysis by NHI Mgmt Group, based on content published by SentinelOne: “EDR vs Antivirus: What’s the Difference?”.
Key questions
Q: What breaks when antivirus is the only endpoint control in place?
A: Antivirus breaks first at the detection layer, because it depends on known file characteristics and struggles with polymorphic, fileless, and human-operated attacks.
Q: Why do compromised credentials make endpoint attacks harder to stop?
A: Compromised credentials let attackers behave like legitimate users or admins, which reduces the value of file-based detection.
Q: How do security teams know whether EDR is actually reducing risk?
A: They know EDR is reducing risk when it shortens the full response loop, including triage, scoping, isolation, and safe re-entry.
Practitioner guidance
- Validate behaviour-based detection coverage Test whether your endpoint stack can detect fileless execution, suspicious process chains, and abnormal network activity rather than only known malware hashes.
- Measure local containment capability Confirm that the agent can stop encryption, delete malicious process trees, and isolate the host without waiting for cloud-side analysis or manual triage.
- Map privileged host activity to identity controls Correlate endpoint telemetry with privileged logons, token use, and lateral movement attempts so host compromise is visible to IAM and PAM workflows.
Bottom line: Legacy antivirus is too dependent on known file characteristics to keep pace with polymorphic, fileless, and human-operated attacks.
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11/07/2026 2:11 pm
Endpoint visibility has become an identity problem as much as a malware problem. The article is framed around antivirus and EDR, but the operational reality is that many modern intrusions begin with compromised credentials, remote code execution, or host-level privilege abuse. That means endpoint security and access governance now intersect at the place where execution happens, not just at authentication time. Practitioners should treat endpoint telemetry as part of the identity control surface.
A question worth separating out:
Q: What is the difference between passive EDR and active EDR in practice?
A: Passive EDR collects telemetry and raises alerts for analysts to investigate. Active EDR uses local automation to stop malicious behaviour on the endpoint while the attack is still unfolding. The practical difference is whether containment depends on human triage or happens at machine speed before encryption, exfiltration, or persistence can complete.
👉 Read our full editorial: EDR versus antivirus: why endpoint visibility now matters