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.
Thanks for the response mate and I will have a look. I have emailed them so just waiting for their response. I changed my coinbase password and made it two factor authentication when I got the first email but might be worth changing it again now→