How secure is JotForm

How secure are the servers for uploading personal and financial forms on JotForms?

Since you mentioned "uploading", just in case you're asking about the actual File Upload field, then that is secure, along with all the other elements within your form. Uploaded files are being served from an https page too. On top of that, there's an option for you to secure your file uploads so it's not publicly viewable by anyone except you (when you're logged in to your JotForm account).

You can enable that option on this page https://www.jotform.com/myaccount/settings

Related article: Keeping-Your-Uploads-Secure

And since we're already discussing security, let me add a few more:

All forms created in Jotform are running on SSL by default [All-Forms-are-Now-Secure-by-Default-The-SSL-Limits-on-Free-Accounts-are-Lifted]

The forms and submissions are transmitted securely with a 256 bit high-grade encryption, which means that data is encrypted during the transmission and cannot be interrupted by anyone else. We have an SSL certificate that uses SHA256 with RSA encryption https://www.ssllabs.com/ssltest/analyze.html?d=secure.jotform.com 

We are also Safe Harbor Certified [Announcing-JotForm-s-Safe-Harbor-Certification]

Regarding your other question about the nonprofit pricing, I have moved it on a separate thread https://www.jotform.com/answers/998130 We'll have it addressed there shortly.

We are glad to announce that Jotform Secure Online Forms page is now available, please find detailed information about all common security related questions, on the link below:

https://www.jotform.com/security/