JUST IN: Coldcard, one of the best-known Bitcoin hardware wallets, warns users to move funds following a $38M BTC theft. The issue affects seeds created on Coldcard Mk3 firmware from version 4.0.1 onward, as well as some older Mk4, Mk5 and Q firmware. Separately, researchers tracked a 594.48 BTC ($38M) theft, with no confirmed link to the Coldcard flaw.(Coin Bureau)