They only thing that I would keep is your phone number saved in my cell phone's memory, and your email address. I keep your phone number in the phone so that your caller ID will show your name, and I'll know that I've seen you before, avoiding the "unknown caller interrogation" process. My cell phone can make the saved numbers 'secret' so that you can't see the number unless you have the lock code. And I always ask if I can save your number, too.

If you become a (free) member of my site, all that's required is a valid email address to send your password to.

Other than phone and email, I don't keep any records. And don't share the info. If I'm used as a reference, I'll verify that you are ok to see. (If that's the case.)

I can only speak for myself, as always, if you have concerns, it's best to ask.