Ideally, this wallet should have a small amount of bitcoin on it, enough to make it plausible that this is indeed all of the bitcoin they have. Also, because Coldcard supports BIP 39 passphrases, ...

Bitcoin Magazine obtained exclusive access to details about the upcoming COLDCARD Mk4, the new version of Canada-based Coinkite’s Bitcoin hardware wallet that improves upon the popular COLDCARD Mk3..

A hardware flaw in Coinkite's Coldcard Mk2 wallet persists, but it is fixed in the company's current Coldcard model Mk3, which started shipping in October.

A hardware wallet for your various cryptocurrencies is a solid way to add more security to your digital assets. ... the Coldcard Mk3 manages to add a bit of retro style to the fold.

This is the first article in a three-part series that examines five of the most popular Bitcoin hardware wallets. By request, samples were provided by some of the companies for review purposes.

Unlike Coldcard, Ledger supports many coins, so the bypass attack could work by tricking wallet users into sending bitcoin when they mean to send litecoin and bitcoin cash, in addition to testnet BTC.

It’s the company’s fifth iteration of a bitcoin hardware wallet, following the introduction of the MK line starting in 2018. The most-recent model, the Coldcard MK4, was released in February 2022.

Bitcoin Magazine obtained exclusive access to details about the upcoming COLDCARD Mk4, the new version of Canada-based Coinkite’s Bitcoin hardware wallet that improves upon the popular COLDCARD Mk3.

Bitcoin hardware wallet Coldcard is fixing a flaw that could trick users into sending bitcoin on mainnet when they meant to use its testnet. BTC $116,134.86 + 1.71 % ETH $2,955.92 + 5.32 % ...

The bitcoin-only hardware wallet Coldcard has released a beta firmware patch for a vulnerability that also affected a competitor hardware wallet earlier this year. Ben Ma, a security researcher who ...