Ethereum’s post-quantum roadmap puts banks on a 2027 deadline nobody is talking about
Ethereum’s post-quantum roadmap sets a 2027 deadline for regulated banks to prepare, even though quantum computers don’t yet threaten validator keys; layer-1 upgrades are expected by 2029.
Ethereum’s post-quantum migration creates a 2027 deadline for regulated banks, years before quantum computers threaten validator keys, according to Sygnum Bank’s Thomas Brunner. He argues banks face earlier compliance risks than widely assumed. Ethereum’s Post-Quantum team says layer-1 upgrades could be complete by 2029, but Brunner warns that regulated institutions must prepare by 2027 to avoid disruption.