Does secrecy help protect personal information?
Personal information protection is an economic problem, not a security problem. And the problem can be easily explained: The organizations we trust to protect our personal information do not suffer when information gets exposed. On the other hand, individuals who suffer when personal information is exposed don't have the capability to protect that information.
There are actually two problems here: Personal information is easy to steal, and it's valuable once stolen. We can't solve one problem without solving the other. The solutions aren't easy, and you're not going to like them.
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