How secure is JotForm server. There will be social security #'s on this form

There will be social security #'s on this form so we would like to know how secure is Jotform servers?

We allow collecting collecting social security numbers for legitimate purposes. Please see the following threads:

http://www.jotform.com/answers/500652

http://www.jotform.com/answers/412196

If you need any further assistance, please let us know. We will be happy to help.