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Intrusion Detection System (IDS)

Security

Detection system analyzing traffic/logs to identify threats; provides alerts rather than blocking.

Definition

An IDS inspects network traffic or host activity to detect signs of compromise using signatures, anomaly detection, and rules. It complements firewalls and incident response.

In plain English Detection system analyzing traffic/logs to identify threats; provides alerts rather than blocking.

Why this matters

Why it matters: Detection reduces dwell time and limits data exposure during incidents.

Example

Example: Tune alerts for brute-force attempts, suspicious DNS, and abnormal outbound traffic; integrate alerts into a SIEM.