ELI5: What is Real-time Alerting?
Real-time alerting sends a warning the instant something happens. It is like a doorbell that rings the second someone steps on your porch, not an hour later.
Definition
Real-time alerting is the SIEM capability that generates immediate notifications to security analysts when correlation rules, threshold conditions, or pattern matches are triggered by incoming log data. Real-time alerts minimize the time between attack activity and analyst awareness, reducing attacker dwell time and limiting the damage from incidents.
Key Details
- Alerts fire in near-real-time as log data arrives and matches defined conditions
- Alert delivery channels: email, SMS, SIEM dashboard, SOAR platform, ticketing system
- Alert severity tiers (Critical, High, Medium, Low) help analysts prioritize their response queue
- Alert tuning is essential: poorly tuned rules generate excessive false positives, causing alert fatigue
- SOAR platforms can receive SIEM alerts and automatically execute response playbooks without analyst involvement
Connections
- Parent: siem — real-time alerting is a core SIEM output capability
- See also: correlation-rules