Reads very quickly. Most of what's here is common sense and I was pleased to discover that I already do about 95% of what the author suggests. That said, this book will make you uncomfortable if you've bought into all the marketing hype and live your life through your handheld device. That's where the biggest risks are and the best possible thing you could do if you're worried about this sort of thing is disengage. Fortunately, I've never really embraced the mobile world, mostly because I do understand the risks. I've been seriously considering shelving the smart phone completely and going back to a handheld that makes and receives calls and not much else. Nothing in this book suggested that would be the wrong approach to data security and privacy.