"Personal computers" are not so personal. Your desktop, laptop, and mobile device are all just remote controls for operating a shared computer owned by someone else, known as a server. This means that the privacy, integrity, and very existence of your data and communications are dependent upon the trust and competence of a third party. For many, this creates an intolerable risk to their privacy and digital property.
The only solution is to own physical personal server that runs self-hosted, open-source protocols and applications over an encrypted, anonymous overlay network such as Tor.
Sounds difficult? It was, until now...