Why antivirus is no longer enough
Choosing an EDR solution
EDR and cyber insurance
Key Takeaways
TL;DR
Traditional antivirus is insufficient — cyber insurers now require EDR.
Microsoft Defender for Endpoint is a cost-effective option for M365 businesses.
Deploy EDR on ALL endpoints — partial deployment doesn't satisfy carriers.
Consider managed EDR (MDR) if you don't have security staff to review alerts.
Official Sources
FAQ
Frequently asked questions
What is the difference between EDR and antivirus?
Antivirus uses signatures to detect known malware. EDR uses behavioral analysis, machine learning, and continuous monitoring to detect known and unknown threats, including fileless attacks and living-off-the-land techniques. EDR also provides automated response and forensic investigation capabilities.
Do I need EDR on every device?
Yes. Cyber insurers require EDR on all endpoints, including desktops, laptops, and servers. Partial deployment creates gaps that attackers exploit. If a device can access your network or data, it needs EDR.
How much does EDR cost for a small business?
Microsoft Defender for Endpoint is included with Microsoft 365 Business Premium ($22/user/mo, which includes Office apps). Standalone EDR solutions range from $6-15/endpoint/mo. For a 25-person business, expect $1,800-$4,500/yr for EDR.
Related Guides
Continue reading
Get your Cyber Defense Score™ in 60 seconds.
100 tools. No installation. No credit card. Real evidence.