Blog

• 04How much Bitcoin could a quantum computer steal?Between about 1.7 and 7 million bitcoin have a public key visible on the blockchain, which is what a quantum attack needs. Which coins those are, and what Bitcoin is doing about it.Oct 11, 2026
• 03What do quantum computing companies actually earn?Four listed quantum computing companies took in about $280 million in the year to June 2026, and the stock market valued them at about $28 billion. Where the revenue comes from and where the money to keep going comes from, from their filings.Oct 11, 2026
• 02What would Q-Day mean for your bank?Card payments and PINs are mostly safe from quantum computers. Online banking sessions, stored records and the keys that prove a message really came from a bank are not. A system-by-system look.Oct 11, 2026
• 01When will quantum computers help make medicines?The chemistry calculations that could help with drug design need about 1,000 to 1,500 error-corrected qubits. The largest demonstrations have about 70. What's been done so far, and where quantum computing would fit in making a drug.Oct 11, 2026