Is using a coldcard without SD cards any better than a ledger?
Discussion
You have to use an SD card to use a cold card.
Ohh. Expecting one in the mail soon, but didn't order anything other than the mk4. No cards or cords. I guess this won't do anything.
Wait a sec, no cards in this tutorial tho
It also works over usb. SD card is better security though.
My mistake! Sorry about that.
Coldcard also only works with the PSBT standard. How you use a Ledger depends on how your wallet has implemented the Ledger integration, or if you are using Ledger’s native wallet software. Greater opportunity for things to go wrong with a Ledger since it’s supporting more formats than just the PSBT standard.
The market will sort it out. 🤷🏼♂️
QR is even better security - akin to using a new SD card for every transaction.
If you can use qr code on coldcard mk4 why even own 9volt battery, SD card etc?
No you can't,
SeedSigner & Foundation you can.
Is this not the cold card doing QR code?
This is from one year ago, so the UX has improved 100x but this is what I'm talking about.
Thanks, I don't know if my link went through earlier. I think this is the coldcard also doing that?
The SD card enables airgapped usage where you create the transaction in your read only wallet and then sign it on your Coldcard via SD so your private keys never touch anything that accesses the internet. Higher security level
I'm not saying don't use SD Cards, I'm saying don't pay $30 for one on their website 🤙
Buy two of these.
Thanks. Still waiting for the cold card to ship. Leaning towards the easy method of plugging into my computer but I'll think about this
Highly highly recommend going air gapped w/ SD Card. No need to introduce any additional attack vector whenever you can avoid it.
This is why blatantly recommending cuckcard to everyone without assessing personal needs is dumb.
Even more dumb because it's not Free & open source.
What happened? Is coldcard bad now?
I am just a poor ledger refuge waiting for cold card in the mail
No, it's not bad. With #Bitcoin you've gotta understand that nobody ever agrees with everything.
The MK4 w/ SD airgap is a clear upgrade to your Ledger.
More importantly, what wallet software are you going to use with the cuckcard?
Not open source :(
https://redmonk.com/sogrady/2018/09/10/tragedy-of-the-commons-clause/
You should cancel your order & get a SeedSigner or Foundation.
That way it's easy with QR.
Why two of them?