• DNS telemetry = domains queried, query volume, timing/patterns — read together, a story about behaviour.
• A SIEM collects, correlates and alerts — turning scattered logs into signals.
• Raw logs are mostly noise; a baseline of normal lets the unusual stand out.
• Tune alerts against the baseline — untuned alerts cause fatigue and get ignored.
• Correlating DNS with endpoint data reveals connections that neither show alone.

PRACTICAL EXAMPLES

Drowning in logs: analysts face unreadable volumes of raw logs. A SIEM plus a baseline of normal behaviour makes anomalies stand out, where raw logs alone are unreadable at scale. Alert fatigue: alerts fire constantly and get ignored. Alerts are tuned against a baseline fire only on what’s genuinely unusual, while un-tuned alerts cause fatigue (the worst outcome). Siloed data: DNS and endpoint data sit separately; correlating them reveals connections neither shows alone, the core value a SIEM provides.