>banks, stocks, personal data, etc would be vulnerable Well no, because most banks are already well on the road to post-quantum. Most major browsers support hybrid PQC handshakes. Some larger banks have enabled this on their public-facing web servers. The backend cryptographic elements for most major banks are already PQC, and no major bank is going to non-PQC keys for any new internal project in 2026. As for personal info, Signal has migrated already (they started some years ago, being smart). Google drive is already protected by hybrid PCQ and well on the way to full. Just because the Bitcoin is by and large in denial, doesn't mean everyone else is.