Low Severity Threats: The Achilles' Heel of Cybersecurity

Published on May 10, 2026 | Translated from Spanish

A massive analysis of 25 million alerts reveals that security teams ignore, on average, one real threat every week. The reason is not a lack of technology, but a dangerous bias: classifying them as low severity. These minor alerts, when accumulated, open gaps that attackers exploit without haste, but effectively.

A cybersecurity analyst reviews a dashboard with thousands of alerts; one, labeled as low severity, flashes in red, ignored.

The hidden cost of prioritizing only the critical 🧠

Alert fatigue and resource scarcity lead analysts to filter by severity level, setting aside events such as failed authentication attempts or low-frequency anomalous traffic. However, correlating these events over time can reveal patterns of reconnaissance or data exfiltration. Ignoring them does not eliminate them; it turns them into a compounded risk that escalates silently.

The art of ignoring what doesn't scream loud 🔍

Attackers have already noticed: if the noise isn't enough to trigger alarms, it's better to do it with a low but constant volume. Meanwhile, security teams, like office workers with cold coffee, keep putting out huge fires while letting sparks ignite the carpet. In the end, the ignored weekly threat is not a technical failure; it's a classic case of human oversight.