Oddbean

First time for me hearing of Dark Skippy, but it sounds like a pretty obvious idea: Malicious firmware causes compromise of hardware wallets. That idea applies to pre and post quantum signatures of any algorithm.

What I meant is that even if bitcoin is made quantum-resistant I am not sure that everything else will be. And if not what kind of implications will that have for bitcoin security? For example, if one can compromise github/gitlab accounts easilly then one has a larger attack surface by modifying either hw wallet firmware or wallet clients code. Do you know if passcodes or ssh comunication are somehow more resistant to quantum-comp attacks?

That's completely true! The transition to PQ crypto is a slow march across all digital industries. I know for sure OpenSSH is actively working on this. https://linuxiac.com/openssh-9-9-released/ The most important part of the overall migration IMO will be TLS. Almost all TLS traffic today is basically plaintext to a quantum computer (incl passwords sent to log into online services, and access keys downloaded over TLS). Cloudflare has a good post about that here: https://blog.cloudflare.com/pq-2024/