Marked Chart Marked Chart Closed
Illustration for the Crypto desk

The stocks in this story

  1. MSTR-2.4%Strategy$141.62

Prices from Based on Thu, Oct 29 close · Opens Fri 9:30 AM ET. Each tile opens the stock's chart and news.

New to this? Read: Trading vs investing: pick your clock

More Crypto news

Illustration for the Crypto desk

Bitcoin

Bitcoin holds near $80,000 as Samsung and Google fall

Bitcoin remains near the $80,000 level while shares of Samsung and Google decline following their earnings reports. Strategy is scheduled to release its quarterly results after the market close on Thursday.

MSTR-2.4%

Quantum Computing

Alice & Bob estimates 29,588 qubits needed to crack Bitcoin

Quantum firm Alice & Bob calculates that 29,588 physical qubits would break Bitcoin cryptography in 62 minutes, far less than Google's prior estimate. Researchers note the theoretical attack exceeds block times and urge migration to quantum-resistant security by the early 2030s.

Fast headlines, summarized. Not verified and not advice. Check the full story before you act.