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David Cao
04:3206/02
26 May 2026Alert Noise • Detection • Security Monitoring

Reducing Alert Noise Without Pretending Risk Disappeared

Notes on tuning, prioritisation, and the danger of making dashboards quiet by hiding the uncomfortable parts.

Noisy alerts wear people down. After enough false positives, even a real signal starts to look like one more blinking thing that wants attention for no reason.

Tuning helps, but tuning is not the same as hiding. If an alert is noisy because the logic is weak, fix the logic. If it is noisy because the environment is messy, document the mess. If it is noisy because the risk is politically inconvenient, congratulations, the dashboard is now quieter and less honest.

Good alert tuning should keep a record of what changed, why it changed, and what risk remains. That record does not need to be dramatic. It just needs to be clear enough that someone can review it later without guessing.

The target is not silence. The target is a monitoring setup where the remaining noise is worth reading.