Kolabtree's Terms and Conditions prohibit freelancers from claiming ownership of intellectual property, and as a client, you are able to reinforce the message with additional communication, agreements or contracts. Most of the freelancers on Kolabtree have PhDs and are very aware and sensitive to ownership of work materials. You are also free to use an NDA with anyone you work with.
Please reach out to us via email at “contact@kolabtree.com” if the above does not answer your query.