Let me quote from a 2012 interview with Bruce Schneier about his book
Liars and Outliers:Q: Given the dangers out there, should we trust anyone? Isn’t “trust no one” the first rule of security?
Bruce: It might be the first rule of security, but it’s the worst rule of society. I don’t think I could even total up all the people, institutions and systems I trusted today. I trusted that the gas company would continue to provide the fuel I needed to heat my house, and that the water coming out of my tap was safe to drink. I trusted that the fresh and packaged food in my refrigerator was safe to eat – and that certainly involved trusting people in several countries. I trusted a variety of websites on the Internet. I trusted my automobile manufacturer, as well as all the other drivers on the road.
I am flying to Boston right now, so that requires trusting several major corporations, hundreds of strangers – either working for those corporations, sitting on my plane or just standing around in the airport – and a variety of government agencies. I even had to trust the TSA [US Transportation Security Administration], even though I know it’s doing a lousy job – and so on. And it’s not even 9:30am yet! The number of people each of us trusts every day is astounding. And we trust them so completely that we often don’t even think about it.
We don’t walk into a restaurant and think: “The food vendors might have sold the restaurant tainted food, the cook might poison it, the waiter might clone my credit card, other diners might steal my wallet, the building constructor might have weakened the roof, and terrorists might bomb the place.” We just sit down and eat. And the restaurant trusts that we won’t steal anyone else’s wallet or leave a bomb under our chair, and will pay when we’re done. Without trust, society collapses. And without societal pressures, there’s no trust. The devil is in the details, of course, and that’s what my book is about.
https://www.schneier.com/news/archives/2012/02/bruce_schneie...