For years, "antivirus" was all a business needed. Today, that's no longer true. Attacks have evolved, and so has the defence - into endpoint protection. If you're still relying on traditional antivirus, here's why it matters.
What traditional antivirus does
Classic antivirus works by signatures - it keeps a list of known malware "fingerprints" and scans your files against it. If a file matches a known threat, it's blocked.
The weakness is obvious: it can only catch threats it already knows about. New or modified malware - created by the thousands every day - slips straight past. It's like a bouncer who only stops people already on a banned list.
What modern endpoint protection does
Modern endpoint protection (often called EDR - Endpoint Detection and Response) adds intelligence on top of signatures:
- Behavioural analysis - it watches what programs do, not just what they are. A file that suddenly starts encrypting documents gets stopped, even if it's never been seen before.
- Detection and response - it can automatically isolate an infected device to stop a threat spreading across your network.
- Visibility - it records activity so an attack can be investigated and the entry point closed.
- Cloud intelligence - it learns from threats seen across millions of devices in near real time.
This behavioural approach is what catches modern ransomware, which traditional antivirus routinely misses.
A simple comparison
| Traditional antivirus | Endpoint protection (EDR) | |
|---|---|---|
| Detection | Known signatures | Behaviour + signatures |
| New/unknown threats | Often missed | Detected |
| Response | Block file | Isolate device, investigate |
| Visibility | Minimal | Full activity history |
Do small businesses really need EDR?
Yes. Attackers don't skip small businesses - they target them precisely because defences are often weaker. Endpoint protection is now a baseline expectation, and it's part of the Cyber Essentials malware-protection control and our security checklist.
The bottom line
Traditional antivirus catches yesterday's threats; modern endpoint protection catches today's. For any business that depends on its data - which is all of them - it's no longer optional. Want to know what's protecting your devices right now? Request a callback and we'll review it, or explore our IT support service.
Frequently asked questions
What is the difference between antivirus and endpoint protection?
Traditional antivirus scans for known malware signatures. Modern endpoint protection (EDR) also watches for suspicious behaviour, can respond automatically and gives IT visibility across all devices.
Do I still need antivirus if I have endpoint protection?
Endpoint protection includes and goes beyond antivirus, so you do not need a separate product. It is the recommended approach for businesses today.
Is built-in Windows security enough for business?
Built-in tools are a reasonable baseline, but business-grade endpoint protection adds central management, faster response and better visibility that most businesses need.
