What is your privacy policy?

It usually takes time to feel comfortable with sharing personal details with people you date.  I can understand wanting to wait to disclose the heavy stuff.  How long do you wait, though?  I know a friend who found a lot of information about her husband after they were engaged or married.  He said while they were dating, it was basically “need to know” and so he kept things to himself.

I’m super curious, so I like to ask questions and get background information.  People have a right to privacy but when you are getting to know someone, the less you hide the better.  What is your privacy policy? Do you share details after any certain time? Do you think some things are best kept to yourself?  What should be shared when you meet someone before you become exclusive?