GlacierProtocol VS firmware

Try this: https://glacierprotocol.org/

Secure keys with glacier protocol.

Here are the things people with more than a little bit of money do: https://glacierprotocol.org/

Alternatively, you could take the probabilistic approach and assume that x number of hardware manufacturers are not in on a ploy to steal your money, which is the approach detailed in the Glacier protocol security guide: https://glacierprotocol.org/

At this moment, most "non- reliant on a 3rd party" and secure way to do this is the Glacier Protocol (https://glacierprotocol.org) - but it is extremely complicated for most users and impractical for not large amounts of money (less than $100,000 equivalent)

And here's a very verbose security guide to help you think about when you might want to use some of these things. https://glacierprotocol.org/

Security guide: https://glacierprotocol.org/ DIY PC airgap: https://youtu.be/-tLoiLo5fT8?t=115 Lopp's curated Bitcoin resources: https://www.lopp.net/bitcoin-information/getting-started.html My curated Bitcoin resources: https://github.com/nerd2ninja/bitcoin-sop/tree/main

TIP: Use the BoM as well as the schematic.

As you can see, the default firmware of Coldcard is hardcoded with values d13e and cc10. We are going to change it to make it look like a benign USB device, more on it later. First, clone the original firmware from Github: https://github.com/Coldcard/firmware We now need to edit the file called ./stm32/COLDCARD/shared/usb.py: COINKITE_VID = 0xd13e CKCC_PID = 0xcc10

Software altered? You were supposed to download from source and flash it yourself. So why did you alter it? No one other than you could have altered it! https://github.com/Coldcard/firmware

Coldcard

Consider holding long term with a solution like this. Have you ever use a hardware wallet like a coldcard

Coldcard has many other security features as well. You can find more about them online. Probably the safest hard & cold wallet on the market right now. But most people don't buy it because of their $400 price tag. But definitely worth it for anyone holding more than a pretty penny.

You can check it

it’s a cold wallet that only holds BTC