Before clicking "Datei herunterladen" (Download file), ask yourself:

They can be password-protected, which sometimes prevents basic email scanners from seeing the malicious code inside.

Ensure your extraction tool (like WinRAR or 7-Zip ) is updated to the latest version to avoid "zip-slip" vulnerabilities.

If you have technical experience, open the file in a "Sandbox" environment or a Virtual Machine. This keeps any potential infection isolated from your main operating system.