Alert fatigue from excessive false alarms threatens the effectiveness of security teams; when tools like anti-malware, SIEM, IDS, or EDR generate too many false positives, responsiveness to genuine threats diminishes, and security managers must actively understand and control their tools’ error rates.

Excessive false alarms in security systems can lead to alert fatigue and cause real threats to be overlooked; security managers must actively monitor the balance between false negatives and false positives to prevent team operational disruption and maintain reliable threat detection.