Encoded files

The threat

Encoding turns a binary payload into text, hiding the final file until the browser decodes it.

How the test works

Choose Base64 or Base32. The browser decodes the text and rebuilds a harmless DOCM test file locally.

Try it yourself
✓
Test pass condition

The encoded transfer or rebuilt file is blocked.

✗
Test fail condition

The browser rebuilds and downloads the file.

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