b9_1155what is air-gapped signer?
a signing device that never connects directly to a computer or network.
it passes data by qr code or memory card instead. this removes some connection-based attacks but adds steps where mistakes can happen.
related words
- hardware wallet a small dedicated device that keeps the keys inside and signs transactions there.
- multisig a wallet that needs more than one key to move funds, for example any 2 of 3.
- hot wallet a wallet whose keys live on a device that is connected to the internet, like a phone app or browser extension.
part of the topic self-custody: free articles, more words and the guide.
checked . education, not advice. found a mistake? see corrections.