There are a few projects working on creating a good root of trust at boot time.
For example, there's Raptor Computing Systems' Talos platform (1) with libre bootware for a desktop computing experience; Bunnie Huang's precursor (2) which is a handheld and mostly solves your problem, and variations on libreboot/coreboot which can be shoe-horned into existing hardware such as Dasharo(3) on to the PC Engines APU2.
(1) https://www.raptorcs.com/blog/08212017001.php (2) https://www.crowdsupply.com/sutajio-kosagi/precursor (3) https://pcengines.github.io/
On the other hand, you may not need to trust your computer if you don't connect it to a network and all information flows only towards it on read-only media.
Yes, anything connected can be recorded, probably by dozens of organizations.
These capabilities are probably kept extremely secret. We will not know much about them until perhaps decades later.
The other direction is to stop caring or at least rationalize why most of your worries are unfounded (like who cares what kinds of kitten pictures I'm interested in?).
It is possible this is happening, but not likely. A reasonable way out, I think is to purchase a new SSD twice as big as your current drive. Do a fresh install of your operating system, programs, etc.
Be very, very careful with what web browsers and extensions you install on your freshly setup machine.
Now - I am the poster child for advocating for capability based security, and frequently point out that NO computer is secure. Yet, I'm typing this on a Windows 10 laptop. It could easily get compromised by any reasonably angry hacker or spy agency. There's nothing I can do about that. However, those a very low probability events, so I don't worry about what I can't change.
If you work on technologies that are military sensitive, or worth more than a few million dollars, consult your security team for guidance, not this random guy from the internet.
I'm hoping eventually to have an OS that is a daily driver with Capability Based Security. Until then, there's always the small threat to live with. We're all mortal after all, and you can't stop death either.
On Websites
Yes, everything IS recorded and archived. It is, or will be, fed into a neural network as a way to increase engagement, or any other number of commercial and political purposes. Don't type or share anything into the internet you will ever regret saying.
I would have the attitude of: dont worry as who cares about my stuff.. except that i think our society is not at a place where this is valid. we dont have the means to address it if we are acted againt.
also using the techniques you are forced into by doing this (e.g. face to face chats about things very important to you) is a security measure that humatiy needs.
I fully get the attitude of: i am going to enjoy my life to the fullest while i can and if i get fucked down the road so be it. but i cannot stomach it myself.
the diversity of humanity is a great safety net and the key driver of this is our independand risk/reward calculations.
.. one way or another be at peace with your decision. I just accept lots of people around me get more out of technology (and are probably more productive or efficient as a result).. i kind of err on the side of so long as you are happy for the time that you are blessed with life and you are not screwing anyone else over just do your thing, as know one knows when the ride is going to end.
EDIT: to be clear i am here posting bullshit on HN, so its not like i dont engage etc.. i just pretty much treat everything on a computer with the same level of privacy/security: none.
The more one knows about the software, the better one can judge what software can be entrusted with what information.
And yes there is some potential analysis of everything
We used to believe that we were watched only by God.
Now we know it is both Him and the Five Eyes intelligence dragnet
Here might be a way to make yourself feel better.
When you search or do anything, make some notes of why you are doing what you are doing. Input those notes into search to at least give the surveillance AI, who probably doesnt really care that much about you, some context and you have the explaining done that you feel you need psychologically.
It is normal to fear actions being taken out of context.
Provide some reasons and imput those to effectively make yourself feel better.
If you are doing genuinely bad stuff then maybe use burners and move 3rd world.
I share your concern, but 'analytics', 'telemetry', 'web beacons' (whatever it's euphemistically called) have been adopted wholesale by developers when creating software. It is rarely questioned by developers because it have become so normal.
An uncomfortable truth is that it is often developers who incorporate user tracking in their software. It doesn't matter if the software is an OS, a desktop app or a SaaS 'cloud' app.
For example, Microsoft's Visual Studio Code is a desktop app that collects telemetry. Electron makes it easy to embed analytics in an app - something developers are eager to do.
Google's ChromeOS is a 'cloud' OS used by millions of school kids in the US. It is not possible to use the full features of the OS without a Google account. Even if user data is 'anonymised' and aggregated we are talking about volumes of data that are simply enormous.
User tracking in software is a juggernaut that shows no sign of slowing down, particulary with the popularity of SaaS. [1]
What do developers have to say about this pervasive tracking?
Developers are more likely to defend their favourite tech company rather than question or scrutinise their tracking practices.
[1] This is a Figma blog post about how Notion was designed using Figma:
"It was around that time we noticed Ivan in Figma. He suddenly popped to the top of our most active user list — spending upwards of 18+ hours a day in our design tool."
https://www.figma.com/blog/design-on-a-deadline-how-notion-p...
The last time this story was posted on HN, the snippet above passed without any comment - and was considered a perfectly normal use of user tracking.
You can improve your privacy on the web but you can never expect it to be perfect, disconnect your computer from the web and you will have excellent privacy (unless you are a target of state level intelligence services)
Do you trust cloud providers such as Google, Microsoft or Dropbox? If yes, just continue using their services. (I use Google Drive for example.)
If no: There are lots of alternatives that are self-hosted. If you trust a VPS provider you can host it there. If not, you can have a mini-PC running in your wardrobe. There you can host e.g. Obsidion, Joplin, etc.
For communication I warmly recommend Signal.