I guess the biggest thing is passwords. I use passphrases, but yea - I don't use any single point of failure with respect to access.

As far as physical, while a lot of your footprint exists on line, still having the physical matters. A property deed is a good example of this. Another example is my will. I might be aging myself out of this conversation, but it's a point of view for consideration. And yes, these are in a fireproof safe along with birth certificates, passports, etc. So yes, if someone steals my identity, I still have physical proof. Standard MFA stuff (from wikipedia) "knowledge (something only the user knows), possession (something only the user has), and inherence (something only the user is)"

I'll end with another opinion ... digital wallets which are not backed by the FDIC are super scary. Im sure this is another conversation, but just because I choose not to have a digital wallet doesn't mean I don't care about free speech :)

Yup. For serious people like military, etc they do keep important info in NON-digital form. When Snowden revelations came out, Russians switched to type writer for their internal memos.

For personal use, just have to say offline USB drive is a good investment if you can make the physical switch.

Until we can have something like the quantum entanglement communication.

Im not a conspiracy theorist or eternal cynic, but yes to the above stuff. I simply dont trust anyone. In the software world its the same concept as never trusting anything client side.

I don't think it has anything to to conspiracy theory or anything like that, it just a matter of fact, that nation state actors just simply DO NOT trust anything digital for important stuff ATM.