The G7 sounds the alarm on security in the post-quantum era

The G7 urges states and companies to switch now to quantum-resistant cryptography. Its report of September 3, 2026, mentions neither bitcoin, nor exchanges, nor blockchain, but targets the component on which every wallet depends: the public key signature, which a sufficiently powerful quantum computer can break.

In brief

An eight-page report that never mentions crypto

The document is eight pages long and contains no occurrence of “cryptocurrency”, “bitcoin”, or “blockchain”. This silence does not mean the sector is on the sidelines. Nine players, including BlackRock, Coinbase, and Strategy, have already joined the Bitcoin Security Consortium to work on the subject.

“Although the exact timeline is uncertain, several recent advances suggest the development of quantum computers capable of breaking widely used public key cryptographic mechanisms and threatening the security of digital infrastructures,” write the authors, led by ANSSI for the French G7 presidency.