It is impossible to design measures to prevent all exploits. Exploits will inevitably evade protection measures, no matter how sophisticated they may be. Sometimes, the best that can be done is to detect exploits during or after they have occurred.
Primary Tools for the Tier 1 Cybersecurity Analyst
- True Positive: The alert has been verified to be an actual security incident.
- False Positive: The alert does not indicate an actual security incident. Benign activity that results in a false positive is sometimes referred to as a benign trigger.
An alternative situation is that an alert was not generated. The absence of an alert can be classified as:
- True Negative: No security incident has occurred. The activity is benign.
- False Negative: An undetected incident has occurred.
|When an alert is issued, it will receive one of four possible classifications|
|Positive (Alert exists)||Incident occurred||No incident occurred|
|Negative (No alert exists)||No incident occurred||Incident occurred|
|Note: “True” events are desirable. “False” events are undesirable and potentially dangerous.|
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