Prevent unauthorized access to your application with Pundit; an authorization library for Ruby on Rails which restricts what resources a given user is allowed to access.

Add multi factor authentication to your existing authentication solution. This gives your users the option to increase the level of security to their account and help prevent unauthorized access.

Devise is a flexible authentication solution for Rails based on Warden. Learn how to add a stable authentication solution like Devise to your application.

Using the Javascript Library, Signature Pad, learn how to capture user signatures and store them within your Ruby on Rails application.

Using ClamAV, scan files uploaded to your application for viruses. In the event of a virus learn how to gracefully handle the infected file and notify the user.