Example Concept: To secure file uploads, implement strict validation and sanitization processes. Use server-side checks to validate file types against a whitelist of allowed extensions, such as <.jpg>, <.png>, and <.pdf>. Limit the maximum file size to prevent denial-of-service attacks and store files outside the web root directory to avoid direct access. Additionally, use random file names to prevent overwriting and ensure that uploaded files are scanned for malware.