I'm using live forms to upload files. Some of them has private information.

After submission those files are sent as an email attachement. Is there a way to delete them afeter that?

It is not possible to delete files at this time. Thanks for suggesting this feature. Please add this to our Community Ideas

To prevent unwanted access to the files I've tried to change the folder type to "secure" or to "database", but when I do this the ":path" token stops working. I'm not able to sent those files as email attachments.

Those the ":path" token only works with standard folder type?

Path token is working for us for both folder type(Secure or database)

Please open a support ticket regarding this issue through https://www.mandeeps.com/support/standard