Running your own Bitcoin node lets you verify payments and retrieve wallet data without querying a third-party server. A hardware wallet stores private keys and signs transactions, but it does not verify the blockchain itself. To display your balance, transaction history and suggested fees, the wallet app on your computer or phone connects to a …

With a sufficiently powerful quantum computer, an attacker could calculate a private key from its public key and transfer someone else’s coins to themselves. They would not need access to your hardware wallet or seed phrase, because the attack exploits a weakness in the way transactions are signed. Google Quantum AI has estimated what hardware …

On April 8, 2026, The New York Times published a 12,000-word investigation by John Carreyrou, the journalist who once buried Theranos. The conclusion: the real Satoshi Nakamoto is Adam Back, CEO of Blockstream and a British cryptographer. Carreyrou says his confidence is “between 99.5% and 100%”. Back responded with a post on X: “I am …