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.
Never had a parcel intercepted but I did once have a parcel come internationally and i guess it got damaged in transit but the silver Mylar bag was hanging out the side through a tear. I am very surprised nothing happened because of it tho haha→