There are lot of effective method for both prevention and mitigation of CSRF attacks. To protect our customers' forms from these, Formlets added "CSRF Protection" feature to our forms. Users just need to enable it through the form settings for added form protection.
Here are the steps to enable CSRF Protection:
1. Click on your form.
2. Click on "Settings" above, beside "Edit".
3. Hover over "Enable CSRF Protection"
4. Switch it on to make it work.
After that, CSRF Protection will now be working on your form and is already protected from CSRF attacks.