Jack Dorsey's Block Releases Bitkey Hardware Wallet

An anonymous reader quotes a report from TechCrunch: Jack Dorsey's Block (the company formerly known as Square) announced today that it is releasing its hardware Bitcoin wallet, Bitkey, in 95 countries. However, users can only preorder the device at the moment, with shipping starting in early 2024. The device will cost $150 USD. Block's pitch to Bitcoin holders is that using a self-custodial crypto wallet is more secure than keeping their crypto assets in custodial wallets or exchanges. Self-custodial wallets put the onus on users to remember -- or store securely -- passwords or long seed phrases to unlock their accounts. The Proto team at Block, which worked on developing the Bitkey wallet, said that it solved this problem by using a two-of-three authentication mechanism. Two keys lie with the customer: the hardware wallet and a mobile app. Bitkey stores the third key on its server. The company argues that by having access to just one key, it can't access or move customers' Bitcoins. Block said that it uses its server-side key only to authenticate transactions to move Bitcoin when they just have their phone and to recover their account when their device or phone is lost. The company said the server-side key will also be able to handle the scenario when a customer loses both the phone and the hardware wallet. Recovery was recently detailed in a blog post by the company. [...] Block has partnered with crypto exchange Coinbase and the company's own Cash App to help people easily buy or transfer (or both) Bitcoins to the hardware wallet. The company said that the ability to transfer Bitcoin from Coinbase and Cash App will be rolled out immediately with other features coming later.

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