Why signature-based antivirus is no longer enough
Traditional antivirus works by matching files against a database of known-bad signatures — fingerprints of malware that someone has seen before. The problem: modern attackers don't reuse old malware. They generate new variants daily (polymorphic malware), hide inside legitimate processes (fileless attacks), or simply wait — executing only after sitting dormant for weeks.
Antivirus still works against known threats. It catches the boring stuff — old viruses, commodity trojans, known phishing payloads. What it doesn't catch is anything new. And most modern attacks are new.
What EDR actually does
EDR (Endpoint Detection and Response) doesn't just check files — it watches behaviour. Every process running on your laptop is being watched for suspicious patterns: spawning child processes unexpectedly, making outbound network calls to known-bad IPs, modifying registry keys, accessing files outside its normal scope.
When EDR sees suspicious behaviour, it doesn't just alert — it can respond automatically: kill the process, quarantine the file, isolate the endpoint from the network, capture forensic data for analysis.
EDR is not antivirus++. It is a fundamentally different approach. AV asks 'does this file match a known bad pattern?' EDR asks 'is this process behaving suspiciously?' The second question catches 95% of modern attacks the first question misses.
5 capabilities where EDR beats antivirus
- 1. Zero-day protection: catches malware before signatures exist
- 2. Fileless attack detection: identifies malicious behaviour without files to scan
- 3. Lateral movement blocking: detects when an attacker pivots across your network
- 4. Forensic timeline: full replay of what happened on an endpoint during an incident
- 5. Automated response: kills malicious processes before a human even sees the alert
Cost reality (Euros per device per month)
Traditional antivirus: roughly €1–2 per device per month. EDR: roughly €3–7 per device per month. The delta is real but modest — usually less than a coffee per device per month. The protection gap is 10–100x larger than the price gap.
When standard antivirus still makes sense
Below 5 devices with no internet-facing services and no sensitive data — yes, traditional antivirus is fine. Kiosks, single-purpose terminals, low-risk environments. Anywhere else: EDR is the right answer.
EDR tools we recommend for SMBs
EDR options by tier
| Tool | Best for | Notes |
|---|---|---|
| SentinelOne Singularity | SMB to Enterprise | AI-driven, low overhead, MITRE ATT&CK mapping |
| Datto EDR | SMBs with managed provider | Built-in SOC, automated remediation |
| Microsoft Defender for Endpoint P2 | Microsoft 365 shops | Included in M365 E5, deep M365 integration |
| CrowdStrike Falcon | Mid-market to Enterprise | Industry-leading, premium price |
KPX recommendation for Kosovo SMBs
For most Kosovo SMBs, SentinelOne or Datto EDR is the right balance of cost, protection, and operational simplicity. Both are managed by us as part of our endpoint service — you don't need to learn them, you don't need to administer them, you just need them to work.