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.
It sounds like those sales were made either with no token or under a different token. I'm fairly confident they will be able to help you track down the BTC though.→