Recommended WP plugin for form with secure file upload

Morning guys. Quick question, I am building a wordpress site for a research project where participants will fill a form to submit metadata for items/files which they will upload for the purposes of the project.

I am currently using Wp Forms Lite which has a file upload as a paid option, does anyone have recommendations for a plugin and or workflow which will allow secure file upload whilst protecting privacy and site security?

many thanks


Gravity Forms gives you a variety of options with regard to file uploads and security.