Privacy is a top concern among SL users, and the Deciduan developer and helpers will always do our best to make sure it's maintained (and generally keep our noses out of your business).
Deciduan operates largely autonomously in-world, but utilizes a back-end server to support functionality including (but not limited to) saving and restoring the female state, context switches, and searches. For the purpose of providing direct user support and system maintenance, the Deciduan developer and certain designated support staff have limited access to your HUD. That said, we will not disclose details to another user, nor perform maintenance without your express consent or as necessary to ensure the stability and enjoyment of the system by all Deciduan users.
Also be aware that some in-world systems may necessarily have access to some elements of your HUD. With the exception of the local sensor function, these devices will generally confirm (with you) their access. This includes Physicians' products, some third-party products, and some sim monitoring systems (e.g., in sims that require the use of Deciduan). With the exception of the physicians' products, access is generally limited to determining the HUD type.
Please let us know if you ever have a concern about this and we'll do our best to make sure you're happy. That said, usage of Deciduan products implies that you understand our privacy policy.