📊 Security Monitoring & Alerting

Learn how organizations detect suspicious activity and identify threats before they become major incidents.

🚨 The Security Guard Analogy

Imagine a building with:

• 50 Cameras
• 10 Alarm Systems
• Hundreds Of Doors

Without monitoring:

Problems May Go Unnoticed

📖 What Is Security Monitoring?

Security monitoring is the process of:

• Collecting security events
• Analyzing activity
• Detecting anomalies
• Generating alerts
• Supporting investigations

⚙️ Monitoring Workflow

📂 Common Log Sources

• Windows Event Logs
• Linux Logs
• Web Server Logs
• Firewall Logs
• VPN Logs
• AWS CloudTrail
• Azure Activity Logs
• EDR Events

The more visibility you have, the easier investigations become.

🏢 What Is A SIEM?

SIEM stands for:

Security Information & Event Management

A SIEM collects logs from multiple systems and helps analysts identify suspicious activity.

🛠 Popular Monitoring Platforms

• Splunk
• Microsoft Sentinel
• Elastic Security
• QRadar
• Graylog
• LogRhythm

These platforms help security teams centralize visibility.

🚨 Common Security Alerts

• Multiple Failed Logins
• Admin Account Creation
• Privilege Escalation Events
• Unusual VPN Access
• Suspicious File Activity
• Unexpected Geographic Logins

Alerts should focus on meaningful security events.

☁️ AWS Example

For cloud environments, security teams often monitor:

• CloudTrail Events
• IAM Changes
• Security Group Changes
• S3 Access Activity
• Root Account Usage

Cloud monitoring is now a core security function.

💻 Laravel Application Monitoring

For production applications, teams commonly monitor:

• Authentication Failures
• Admin Logins
• Password Resets
• API Abuse
• Permission Changes
• Error Spikes

Application logs often become critical during investigations.

🏢 Security Operations Center (SOC)

Many organizations operate a SOC.

Responsibilities include:

• Alert Monitoring
• Threat Investigation
• Incident Escalation
• Security Reporting

Monitoring is often the SOC’s primary mission.

👨‍💻 Tech Lead Monitoring Checklist

• Are login events logged?
• Are admin actions tracked?
• Are cloud changes monitored?
• Are alerts reviewed?
• How long are logs retained?
• Can incidents be investigated later?

⚠️ Common Mistake

Many organizations collect logs.

Few organizations actively review them.

Logs Without Monitoring Have Limited Value

🏆 Key Lesson

Security monitoring is about visibility.

Visibility creates awareness.

Awareness enables response.

You Cannot Defend What You Cannot Observe

🔍 Threat Intelligence Basics

Learn how security teams use information about threats, attackers, and emerging risks to improve defenses and prioritize security efforts.