Partners are trusted collaborators who are not part of your Sookasa team. They are typically external to your organization, like clients or contractors, but they might also be people within your company (for example, people in other departments).
Partners can open any encrypted file you share with them, and you can open any encrypted file they share with you.
Any Sookasa user can add or remove their partners. A team admin can also add or remove partners connected to the broader organization, no matter who on the team added them.
Please note that none of your files will be shared with someone the moment they become your partner. You will explicitly share the files you would like to share with them.