we do not share your data with anyone and there are many ways to control the visibility and storage life of your data here.
but the internet is a public space and you should always assume your data could be compromised.
be smart with your password, use tor or a vpn, and use pgp for sensitive communications.
Don't think there is much of a way around it right now. Id suggest trying to do transactions late at night when things seem to be quieter. I tend to get the fees down to about $7-8 by doing that. Hope that helps :)→