🔒 Could a quantum computer empty your wallet?

Google says breaking bitcoin's encryption may be far easier than we thought — plus a rule change could open trillions in 401(k)s to crypto. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tuesday, March 31, 2026 Bitcoin bulls scramble for post-quantum protection as Google drops bombshell paper Google's Quantum AI team says cracking BTC and ETH wallet encryption could require far fewer qubits than previously assumed, with Taproot widening the attack surface. About 6.9 million bitcoin — roughly a third of total supply — already sit in wallets with exposed public keys. The industry is now racing to map a post-quantum migration path before Google's 2029 deadline. Read the full story → Policy U.S. rule change may open trillions in 401(k) funds to crypto The Labor Department proposed a rule that would make it easier for retirement plans to include digital assets, private equity, and real estate — reversing Biden-era guidance that warned fiduciaries away from crypto. The proposal enters a 60-day public comment period. Read more → Markets Bitcoin has never had a seven-month losing streak — but that could change With hours left in March, BTC is down about 1% for the month, on track to match a record six consecutive monthly losses last set in 2018–2019. In every prior bear market, bitcoin has fallen below its 200-week moving average — a level it hasn't breached yet this cycle. Read more → Consensus by CoinDesk Join CoinDesk at Consensus Miami, where agentic commerce, crypto at scale, and institutional integration are redefining the future of finance. Save 20% with the code HEADLINES Get your pass → Know someone who should be reading this? Share this newsletter See all of CoinDesk's newsletters    CoinDesk, Inc., 61 9th Avenue, 5th Floor, New York,NY,10011,USA, Unsubscribe Manage Preferences   Copyright © 2026 CoinDesk, All rights reserved.