Guide

How does malware scanning work for uploaded files before they're processed?

Last updated 2 October 2026

Every upload is scanned for known malware before it's processed, including files inside archives — tested with real malware signatures embedded in large zip files, not just assumed to work.

Why this has to happen before processing, not after

A file-processing pipeline that doesn't screen uploads is a way to get a third party's compute to unpack and execute something malicious on your behalf — the processing step itself (unzipping, OCR, conversion) can be exactly what triggers a payload if nothing is checked first.

What's actually verified here

Files are scanned for known malware signatures before any processing step touches them, including content packed inside archives — proven with real test signatures embedded in archives well over 100MB, not left as a theoretical claim.

Where this breaks down — said plainly

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