Adobe Fill and Sign no longer protects from edit?
I have started creating adobe forms that can be filled in and signed remotely - helpful when most of our staff are working from home at the moment. When I first started setting up the forms (April 2020), adding a signature would lock existing fields and text, and the only way to edit would be to cross through and add free floating text (essentially same security as a paper document). Now however even a saved form with signature applied is editable - up to and including existing fields, completed text, radio buttons and signatures! This is no security at all. What can I do to protect these forms from editing once a signature has been applied? Example below showing where all fields are still editable.

