Google's new whitepaper says it could take only minutes for a quantum system to crack Bitcoin.

A team of Google researchers just set a new date for post-quantum cryptography migration: 2029. Among other things, this means that Bitcoin, as well as many other cryptocurrencies, needs to adopt new cryptographic techniques that are resilient to quantum attacks within three years.

Two papers published this week have reignited debates about the risk posed by “Q-day” to the cryptography that underpins digital assets.