I think we'll be fine for the immediate future. If any real world cryptographic breaks happen, the rest of the internet will find out first, and then we can consider upgrading key sizes or algorithms.

For the most part, both symmetric and asymmetric encryption are relatively safe from brute force as long as you use larger than 128 bit keys or the equivalent. Hash functions work similarly.


Also, someone please define "quantum resistant" bitcoin addresses. I believe even the legacy addresses that are unspent with no other outgoing transactions are quantum resistant already.