So the Holy Trinity is: Security, Privacy and Anonymity.
Security: It's in the hands of others if you use websites, hell even your ISP is a risk.
Privacy: if you only interact with the site you might have a bit of privacy between you two.
Anonymity: pfft tell that Ross Ulbricht
The only secure way to be on a device is to not go on the interwebs although even that's not safe. LOL
You aren't secure in this situation which is why distributed IT is being developed. So your answer is to just give up and allow authority to screw you over? If you decide to opt out, there is a correct way to minimize risk. VPN's, TOR, encryption, physical device security...