This feels somehow wrong. When one decides he wants to publish some information privately he should decide: 1. Whenever he trusts the delivery and storage med

This feels somehow wrong. When one decides he wants to publish some information privately he should decide: 1. Whenever he trusts the delivery and storage mediums (on all layers) not to leak and/or tamper with this information, and deliver it in time. 2. Whenever he trusts the recepients to handle this information properly. 3. What are the risks in event the leakage happens (even if all parties are highly trusted), and what measures should be taken in such case. This is not paranoid thinking (although it sounds so), it's security ABC.