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.
I feel as if this site is optimised for the Tor browser, as things load a lot faster when I use it. If you dont want to use Tor then I suggest using Firefox. Tor is based off of Firefox→