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've only bought from here once but I had no problems at all. My was has stage 4 as well, so LB is a 'godsend' for us :-)→