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Privacy-Focused Proton Mail Aids FBI in Uncovering ‘Stop Cop City’ Protester’s True Identity
(www.gadgetreview.com)
This is a most excellent place for technology news and articles.
Furthermore, you can pay with bitcoin or even cash (sent to their HQ by mail). That way they'd have even less on you.
With the caveat that in some of their procedures they (seem to?) require to append account information in the mail, so if the postage can be traced back to you that's an issue.
Yeah, not sure how it'd work with return addresses and whatnot. But if the letter itself is intercepted there's probably more that can be used to trace back to you, unless you only handled the money and paper in a clean room.
Well, the entire procedure requires you to first trust the snail mail chain in the first place, so it's a different category of trust that "trust a CC provider". Snail mail used to be sacred, but it's been known not-to for a long while now. And at the point that you can expect the acabs are willing to inkdust and laser your mail for biological traces, that means you are facing a nation-state adversary with nation-state power, so you should be looking into nation-state level defenses instead.