21 BTCHot / cold wallet
In plain words
Hot: keys on an internet-connected device. Cold: keys kept offline.
See also
- Hardware walletA hardware wallet is a small device that keeps your private keys offline and signs transactions inside itself. Even if your computer is infected, the keys never leave the device.
- Air-gappedA device that never connects to a computer by cable or network; data moves by QR code or SD card.
- Seed phraseA seed phrase is a list of 12 or 24 ordinary words that can recreate all the keys of a wallet. Whoever has the words has the bitcoin, so write them on paper or metal and never type them into a website.