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.
There a good vendor I'm sure they would of helped you out. If stuff like that happens best thing to to is contact a seller just to let them know as no vendor likes to slip behind.→