Why Do You Need More Than One Antivirus Engine | MetaScan Multiscanning explained ✨

No single antivirus engine catches everything. Independent labs like AV-Comparatives, AV-TEST, SE Labs, and Virus Bulletin test dozens of engines every year – and the results are never identical. So why do most organizations still rely on just one?

This video breaks down Metascan Multiscanning Technology – OPSWAT’s approach to malware detection that runs files through 30+ AV (antivirus) engines instead of one, and the actual math behind why that works.

In this video:
00:00:00 – Anti-malware multiscanning: the concept
00:00:07 – Why do you need more than one antivirus engine?
00:00:27 – What independent testing labs (AV-TEST, AV-Comparatives, SE Labs, Virus Bulletin) reveal
00:00:39 – Device protection vs. file scanning: they’re not the same thing
00:00:58 – How combining engines changes detection outcomes
00:02:06 – The probability math: why more engines = higher detection odds
00:02:32 – 1 engine vs. 5 engines: average detection speed compared
00:03:01 – Keeping multiscanning manageable: allow lists, block lists, central management
00:03:46 – The way to handle it: MetaDefender
00:04:00 – Multiscanning in one line: better detection, faster response, more flexibility

Frequently asked questions

🔹What is multiscanning in malware detection?
Multiscanning runs every file through multiple independent AV engines at once, rather than relying on a single engine’s signature and heuristic database.

🔹How does multiscanning improve malware detection?
Statistically, if one engine misses a threat, another may still catch it. The probability that at least one engine detects a threat is always higher than any single engine’s detection rate on its own – this compounding effect is the entire basis for multiscanning.

🔹Is device protection the same as file scanning?
No. Endpoint or device protection monitors behavior on a running system. File scanning inspects a file itself – on upload, transfer, or at rest – before it ever executes. Multiscanning strengthens the file-scanning layer specifically.

🔹How do you keep multiple engines manageable?
Through allowlists, denylists, and central management – so security teams aren’t manually tuning 30+ engines one at a time.

What you’ll understand by the end of this video :
✅ Why relying on a single antivirus engine leaves detection gaps
✅ The probability logic behind combining multiple AV engines
✅ How detection speed changes when scanning with more engines
✅ The difference between device protection and file scanning
✅ How OPSWAT keeps a 30+ engine multiscanning setup operationally manageable

Go deeper: the MetaDefender Core Professional course on OPSWAT Academy covers Metascan® Multiscanning Technology configuration, workflow rules, and fine-tuning in detail. → MetaDefender Core Professional | OPSWAT Academy https://hubs.la/Q04tkGGk0

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