Cambridge Analytica. Edward Snowden. Smartphone apps tracking our every move. Privacy may be a defining issue of our age, but it is also one of the least understood. Our digital world confuses what is public and what is private. Do old ethical and legal norms still apply? What can protect us from corporations, governments and hackers knowing more about us than we know about ourselves? Sacha Molitorisz's rigorous and engaging book spells out conceptual and practical steps to ensure that our shared future is not dystopian. It shows that informed privacy is fundamental to us as individuals and as social beings, and that in the digital world we need an enforceable regulatory framework to secure our relationships with others and to safeguard our democracies. Book jacket.