Alert fatigue is not simply “too many alerts”
Why alert quality, false positives, missing context and repeated exposure matter more than raw volume alone.
Alert fatigue occurs when repeated exposure to low-value, false-positive or poorly contextualised alerts exhausts analysts and weakens attention to genuine threats.
A clearer definition
Alert volume matters, but volume alone does not fully explain alert fatigue. A busy environment may produce many valuable alerts, while a smaller stream of repetitive false positives can still create severe fatigue.
A useful definition should therefore include repeated exposure, low alert quality, psychological exhaustion and the resulting risk of slower or missed response.
What creates alert fatigue
False positives and low-value detections
When analysts repeatedly investigate events that do not represent meaningful threats, attention is spent without producing security value.
Missing context
An alert may be technically correct but operationally weak when it lacks asset importance, user behaviour, related events or a clear explanation of why the activity matters.
Fragmented workflows
Switching between tools, manually gathering evidence and repeating documentation work adds cognitive load beyond the alert itself.
Why the problem matters
Fatigue can lead to desensitisation, delayed investigation, inconsistent prioritisation and increased risk that a genuine threat is overlooked. It can also reduce job satisfaction and weaken trust in detection systems.
A better research direction
Reducing alert fatigue requires more than suppressing alerts. Security systems should improve detection quality, add relevant context, group related events, explain priorities and preserve analyst control over decisions.