From the blog

Guides, write-ups, and behind-the-scenes.

EXPLAINER

What is the EICAR test file?

The safe way to check your malware scanning actually works — without going anywhere near real malware.

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GUIDE · SECURITY

How to pass a penetration test file upload check

The file-upload findings that come up in nearly every pen test report, and how to close them properly.

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GUIDE · WORDPRESS

How to scan WordPress uploads for malware

WordPress stores whatever your contact form receives. Here is how to check it first — with a plugin, or with three lines of PHP.

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GUIDE · AI

Prompt injection hidden in uploaded files

If an AI reads files your users upload, attackers can leave it instructions your virus scanner will never see.

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