🖥️ Endpoint Protection & EDR

Learn how organizations protect and monitor laptops, servers, and endpoints against modern threats.

🏠 The Front Door Problem

Imagine securing a building with:

• Strong perimeter security
• Cameras
• Access controls

But every employee leaves a side door unlocked.

That’s what unmanaged endpoints can become.

📖 What Is An Endpoint?

An endpoint is any device connected to an organization.

• Laptops
• Desktops
• Servers
• Virtual Machines
• Mobile Devices

Endpoints are often the first place suspicious activity appears.

🦠 Traditional Antivirus

Traditional antivirus mainly focuses on:

• Known malware signatures
• File scanning
• Quarantine actions

This was effective for many years.

But attackers evolved.

🚀 What Is EDR?

EDR stands for:

Endpoint Detection & Response

Instead of only looking for malware files, EDR watches behavior.

⚙️ EDR Workflow

📊 What EDR Monitors

• Process Creation
• User Logins
• File Changes
• Network Connections
• PowerShell Activity
• Privilege Changes
• Application Behavior

These events become valuable security telemetry.

🛠 Common EDR Platforms

• Microsoft Defender for Endpoint
• CrowdStrike Falcon
• SentinelOne
• Trend Micro Vision One
• VMware Carbon Black

Large organizations typically deploy EDR across all endpoints.

🔍 Practical Investigation Example

A SOC analyst receives an alert:

• New process launched
• Unexpected outbound connection
• Privilege escalation attempt

EDR helps investigators reconstruct what happened.

🐧 Linux Monitoring Concepts

Security teams often monitor:

who

last

journalctl

ps aux

These commands help understand system activity during investigations.

🚨 EDR Response Actions

Modern EDR platforms may:

• Generate alerts
• Isolate endpoints
• Collect evidence
• Support investigations

Quick response can significantly reduce impact.

👨‍💻 Tech Lead Perspective

If you manage:

• Laravel Servers
• AWS Infrastructure
• Developer Workstations
• Production Systems

You should know:

• Which endpoints exist
• Which endpoints are protected
• Which endpoints are monitored
• Which endpoints are unmanaged

📋 Security Audit Questions

🏆 Key Lesson

Firewalls protect networks.

Authentication protects identities.

EDR protects endpoints.

You Can’t Protect What You Can’t See

🌐 Network Segmentation

Learn how organizations limit the spread of incidents by separating networks, applications, servers, and critical systems.