We do NOT sell or rent any customer information to third parties.
Obviously, if you grant estate access to other users, they will be able see the data to which you give them access.
Similarly, we track visits that originate from ads shown on Facebook, and automatically notify Facebook ad infrastructure if an ad is successful. We do not send any data about your estate to Facebook.
Finally, note that if you have supplied us an email address, we may infrequently send you an email to let you know of an important security issue or product upgrade, and may use a third party to facilitate the delivery of any such emails.