The world is a dangerous place. You can never be sure your data will never leak, just as you can never be sure that you will not be robbed or assaulted walking down the street. There are many things you can do to protect yourself, online or on the street, but there is no perfect security. And even if you implement the latest and greatest and best security measures... you can still be victimized. It doesn't need to be YOU that compromises your data... you can be exposed by your bank, your health insurer, your government, the companies you interact with (for-profit or non-profit alike), even the web sites you visit (porn?).How can I be sure that my data will never leak anywhere?