How do you manage data protection?

• Encryption of all terminals (if stolen)
• encrypted backups on your own NAS and on your own server
• No personal data on USB sticks, etc.
• own server with its own Nextcloud (no data at MS, Dropbox & Co) for data exchange (or at least one German/European provider if you don't want to do it yourself)
• Use of a (offline) password manager and, in principle, only random passwords (with the exception of the password for the password manager)
• blocking all third-party cookies and automatic deletion of all cookies when closing the browser (with a few exceptions for banks, etc.)
• no use of customer loyalty programs, discount cards, etc.
• no use of products from Meta, Microsoft, Adobe (to name the largest with strange privacy statements)
• DuckDuckGo as standard search, alternative MetaGer
• E-mail privately only encrypted, at companies wherever it is, (possibly inbox encryption on the mail server, but that can not be many providers if you don't want to build it yourself)
• multiple mail addresses for different purposes
• Cash payment if possible, otherwise SEPA instead of credit card / Paypal
• No use of free products, etc., if anything costs nothing, you pay with your data

But this is not perfect for me, so I also have an Amazon / Google / Paypal account, accounts in several online shops (most of which have only the address and a mail address) and a credit card because in some cases it is not different or simply makes life easier. But even at shops, I also care to never put the hook for the consent for advertising.

At the moment, it is still about profiling to display matching advertising (which you can block) or criminals use some exploited data to make phishing, etc. But that doesn't have to be the same in the future. Once you have matching profiles, it is no longer far at "personalized" prices in shops depending on purchasing power, AI generated emails with "personal" speech, evaluation of such profiles before the conclusion of (work, rental, etc.) contracts, etc.