How do I protect my information as private so my account can’t be hacked?

elisha72 wrote:

How do I know if someone hacked my account and protect it from being hacked? How do I set up privacy?

What Apple recommends doing in general:

… Personal Safety User Guide - Apple Support

Issues or concerns Apple has detected for your security: Settings > Passwords > Security Recommendations

How too many people get in trouble (scams, phishing, etc):

… Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Re-using passwords is deadly.

Use 2 Factor Authentication and use complex passcodes/passwords. If you think any app or account has been compromised change the password to something difficult to guess.