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What’s the best way to protect file uploads from malware?

Asked on Nov 13, 2025

Answer

To protect file uploads from malware, implement a combination of server-side validation, antivirus scanning, and content-type verification. This ensures that only safe and expected files are processed and stored.

Example Concept: When handling file uploads, it's crucial to validate the file type and size on the server-side, scan for malware using an antivirus solution, and verify the content type against expected MIME types. Additionally, store files outside the web root to prevent direct access.

Additional Comment:

Always validate file extensions and MIME types to ensure they match expected formats.
Use a reputable antivirus library or service to scan files immediately upon upload.
Implement size limits to prevent large, potentially harmful files from being uploaded.

✅ Answered with Security best practices.

Ask any question about Website Security here... and get an instant response.

What’s the best way to protect file uploads from malware?

Asked on Nov 13, 2025

Answer

Additional Comment:

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