EDR vs. Traditional Antivirus
Updated 26 March 2026
Traditional antivirus costs $1 to $5 per endpoint per year. EDR costs $3 to $15 per endpoint per month. Is the 10 to 20x price difference justified? For most organisations, yes. Here is why.
| Capability | Traditional Antivirus | EDR |
|---|---|---|
| Primary detection method | Signature-based file scanning | Behavioural AI and process monitoring |
| Fileless attack detection | No | Yes |
| Ransomware rollback | Rarely | Yes (advanced tiers) |
| Attack timeline reconstruction | No | Yes - full process tree |
| Remote endpoint isolation | No | Yes - one click |
| Telemetry storage | None | 30 to 365 days |
| Threat hunting capability | None | Yes - query raw telemetry |
| MITRE ATT&CK coverage | Tactics 1-2 only | All 14 tactics |
| Live response to endpoint | No | Yes (most platforms) |
| Cost per endpoint per month | $0.50 to $5 per year ($0.04 to $0.42/mo) | $3 to $15 per month |
| Cyber insurance acceptance | Not sufficient alone for most policies | Broadly accepted by insurers |
When antivirus is sufficient
Very small businesses (under 10 endpoints)
Micro businesses with no sensitive customer data and no compliance requirements can function adequately with Microsoft Defender (free with Windows 10/11) or a $3 to $5 per year AV product. The priority at this size is backups and phishing awareness training rather than advanced detection.
Isolated non-networked devices
Air-gapped industrial control systems, kiosk devices with no internet connectivity, or standalone machines processing non-sensitive data may not require full EDR telemetry. However, USB vector attacks still apply and should be considered.
When EDR is necessary
Cyber insurance requirement
Most cyber insurers now require EDR as a minimum control for organisations seeking coverage above $500,000. Without it, you may face policy exclusions for ransomware claims.
Compliance mandates
PCI DSS v4.0, HIPAA security rule updates, and ISO 27001:2022 all include requirements that effectively mandate endpoint behavioural detection. AV alone does not satisfy these controls.
Remote workforce
Laptops operating outside the corporate network perimeter are the primary initial access vector in modern attacks. EDR provides protection regardless of network location, unlike firewall-dependent tools.
The real cost comparison
A single ransomware incident costs $1.85 million on average (IBM Cost of a Data Breach Report 2024). EDR for 500 endpoints at $8 per endpoint per month costs $48,000 per year. That is 2.6% of one average breach cost. The question is not whether EDR is expensive. The question is whether the risk of not having it is acceptable.