“Using the COLDCARD Mk4 is pretty straightforward. Yet, what goes on under the hood is far from obvious. Technical documentation, the hardware specifications and code used are available, yet not easily understandable by all. To best understand what&rsquo;s going on under the hood, we will go through the process of setting up a COLDCARD and using it.” &mdash; Tristan Borges Solari

Today we are going to take a bit of a dive into the inner workings of hardware wallets, and the security and thinking around protecting your keys. Working from an article that breaks down how the Coldcard works at a technical level, and then geeking out on the design philosophy, simple strategies for creating and remembering PIN numbers, backup rituals, and writing spy stories. Hope you enjoy this one XD 
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Check out the original article at&nbsp;<a href="https://blog.coinkite.com/understanding-mk4-security-model/">Understanding The COLDCARD Mk4 Security Model and Secure Element Use</a>&nbsp;(Link:&nbsp;https://tinyurl.com/4y5m5ure)&nbsp;
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Read_845 - Understanding The COLDCARD Mk4 Security Model

“Using the COLDCARD Mk4 is pretty straightforward. Yet, what goes on under the hood is far from obvious. Technical documentation, the hardware specifications and code used are available, yet not easily understandable by all. To best understand what&rsquo;s going on under the hood, we will go through the process of setting up a COLDCARD and [&hellip;]