Coldcard: The stock of defective pieces has been destroyed and affected users are advised to move funds as soon as possible

On 3 August, Coldcard, a manufacturer of bitcoin hardware wallets, pushed that the past three days had been one of the most difficult periods in the company ' s history, with some users having lost years of savings. The team has been in constant contact with clients since last Friday to assist in the transfer of funds that remain secure and provide guidance on recovery. Officially, the remaining COLDARD stocks, which have been produced using loopholes, have been destroyed and shipments suspended. Satscard, Opendime and Tapsigner were not affected. The released patch-fixes prevent the new generation of assistive words, but there is a risk that the old help-words generated on the gap-fixes will require the user to create a new wallet and transfer funds. It was suggested that, for the time being, alternatives such as Bitkey, Ledger, Trezor, Jade, Bitbox could be considered, and affected users were called upon to retain equipment to cooperate with subsequent recovery。