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.
Like all security questions this is relative to your idea of risk and the conditions in your jurisdiction. That said an ounce is pretty safe from all perspectives, easily concealed and not worth the time of evil agents.→