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.
Its simple. Buy crypto from Coinbase or likewise agency(Binance,Coinmama) and transfer funds to blockchain. Blockchain is your online wallet where you store crypto and then pay for your purchase.→