Sarah T. Gold provides an excellent overview of the current state of personal data privacy (or, increasingly, the total lack of it) and imagines some possible solutions in her video ‘The Alternet’:

…the Alternet evolved as a superfiction, a creative proposal that blends fiction and real world structures, presenting organisations and the lives of invented people as though they were real. The project presents designs for fictional products based on existing processes, prices, capacities and services alongside real world initiatives.