Company blog of Coinkite, a Bitcoin hardware wallet and services maker, with product announcements and security advisories.
HN links it for the Coldcard Mk3 seed generation advisory and technical entropy write-up. One commenter calls Coinkite's trust model useful but not for everyone.
I've always told people in the past the Coinkite's model - trust Coinkite to handle security for you - has a valuable place in the Bitcoin ecosystem, however it's certainly not for everyone. I personally use Coinkite to store a portion amount of my Bitcoin savings as a diversity measure, but I'd never trust them with everything.
But this new multisig support gives you the option to have the best of both worlds: Coinkite helps keep your Bitcoin's safe, and so do you. And I'll probably move the Bitcoins I currently store at Coinkite to a Coinkite multisig account myself.
Disclaimer: I'm Coinkite's Chief Naysayer. http://blog.coinkite.com/post/85842528071/peter-todd-joins-coinkite-as-chief-naysayer
I don't have any BTC on hand, so I genuinely don't know. The barista I spoke with mentioned that they get four or five transactions per week, and they had a physical POS terminal for Bitcoin transactions, similar to the one CoinKite was producing a few years ago: http://blog.coinkite.com/post/76526284739/did-you-know-that-with-the-coinkite-terminal-you
Vendor advisory post:
https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/
Technical deep dive:
https://blog.coinkite.com/entropy-technical-backgrounder/
Coldcard Security Advisory: https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/
Here is the official blog post about it http://blog.coinkite.com/post/119362064671