Short answer: yes. Longer answer: not because EDR is fashionable, but because the attacks aimed at small businesses have changed in ways traditional antivirus can't keep up with.
Why legacy AV is no longer enough
- Modern attackers don't drop files antivirus can fingerprint — they use legitimate tools (PowerShell, RMM software, scheduled tasks) to operate quietly.
- Credential theft and lateral movement leave no malware behind for AV to scan.
- Ransomware operators test their payloads against every major AV before launching.
What EDR adds
- Behaviour-based detection — spotting suspicious actions, not just known files.
- Full process and network telemetry — so an analyst can see what actually happened.
- Automated containment — isolate a host the moment something looks wrong.
- Investigation tools that turn 'something pinged' into 'here's the story'.
When EDR becomes essential
- You handle client data, payment data, or anything regulated.
- You have staff working remotely on company devices.
- Your cyber insurance questionnaire asks about it (it will).
- You're pursuing Cyber Essentials Plus or any enterprise contract.
The catch
EDR is powerful, but only if someone is watching the alerts. Most small businesses don't have a 24/7 security team — which is why EDR is almost always deployed as part of a managed (MDR) service.
Next step
Want to know if your current endpoint protection is genuinely EDR or just rebranded antivirus? Book a free 30-minute review and we'll tell you straight.