Google has set 2029 as its deadline to migrate all of its infrastructure to post-quantum cryptography, citing the urgent threat posed by rapid advances in quantum computing. The company has warned of the risk of "harvest now, decrypt later" attacks and plans to integrate quantum-resistant signatures in Android 17. Bitcoin relies on vulnerable elliptic curve cryptography, with an estimated over 6.8 million bitcoins potentially at risk. While a cryptographically significant quantum computer may still be years away, Google's timeline underscores the urgent need for the decentralized ecosystem to prepare for complex protocol upgrades.