EDR = Endpoint Detection and Response
It’s an advanced cybersecurity technology focused on monitoring, detecting, and responding to threats on endpoints like laptops, desktops, and servers.
How EDR Works
EDR continuously monitors endpoint activity (files, processes, network connections, registry changes, etc.) and:
- Detects suspicious behavior (not just known malware)
- Logs and stores detailed telemetry from the endpoint
- Provides threat alerts with context (e.g., “PowerShell spawned by Excel file”)
- Allows remote investigation and forensics
- Offers response actions like isolating a device or killing a process
🛡️ Think of EDR as a smart security camera on each device that watches everything and helps stop intrusions before they spread.
EDR vs Antivirus (AV)
| Feature | Antivirus (AV) | EDR |
| Detects known malware | ✅ Yes | ✅ Yes |
| Detects fileless/memory attacks | ❌ Rarely | ✅ Yes |
| Behavior-based detection | ❌ Basic | ✅ Advanced |
| Centralized dashboard | ❌ Often lacking | ✅ Yes |
| Remote response (quarantine, kill process) | ❌ No | ✅ Yes |
| Threat hunting | ❌ No | ✅ Sometimes (if paired with MDR) |
| Compliance-friendly logs | ❌ Minimal | ✅ Detailed |
Examples of EDR Tools
| Product | EDR Capabilities? | Notes |
| SentinelOne | ✅ Full EDR | AI-powered, very strong MSP fit |
| Coro | ✅ Basic EDR | Focused on simplicity, less forensic depth |
| Microsoft Defender for Endpoint | ✅ Full EDR | Excellent with M365 E5 or Business Premium |
| Huntress | ⚠️ Not traditional EDR | Focuses more on post-breach detection, complements EDR |
| Webroot | ❌ No EDR | Traditional AV, lightweight |
Why EDR Matters for Cyber Insurance
Insurers increasingly require:
- EDR (not just AV) for endpoint protection
- Evidence of alerting and response
- Incident logging for forensics
EDR helps you detect and stop early-stage attacks (like ransomware before encryption) and shows insurers you’re proactive.
Summary for MSPs
| Scenario | Do You Need EDR? |
| Dental clinic with basic compliance needs | ✅ Yes (basic EDR like Coro is fine) |
| Client wants cyber insurance | ✅ Definitely |
| High-risk vertical (legal, finance) | ✅ Stronger EDR like SentinelOne or Defender |
| Already using Huntress | ✅ Pair it with EDR (Huntress is not a replacement) |