My team uses a internal website to submit data via web form into a Oracle 11g database...easy enough. We now have the need to migrate this site outside the firewall and make it available via mobile devices. We believe a mobile website is the best option (opposed to an app).

I'm struggling to find real-world examples where people have migrated an internal web app to the mobile web and addressed common questions around:
- User Authentication
- Data Encryption
- Submitting form data and security concerns
- Returning form data and security concerns
- What toolsets to use when migrating (best practices)

Not looking for solutions. Just a poke in the right direction would be nice.

I'm obviously very new to this...be gentle.

Thanks guys