Coinkite has announced the launch of Coinkite Coldcard Mark3 (MK3). The MK3 will be the third generation in the secure bitcoin hardware wallet. The version has more than double the RAM from its previous version. Moreover, it has extensive side-channel defense mechanisms among many other new features. Coldcard is a Bitcoin hardware wallet that stores Bitcoin offline in secure cold storage. The system is BIP39 based that allows users to store secrets in the paper. Moreover, it enables users to create many sub-accounts and have an infinite number of payment addresses. Furthermore, it has an intelligent system that understands transactions
