cold wallet
Disconnected crypto safe
A cold wallet is a cryptocurrency storage device or method kept offline, disconnected from the internet to protect against hacking.
Unlike "hot wallets" that stay connected for easy transactions, cold wallets sacrifice convenience for security: I keep my long-term Bitcoin holdings in a cold wallet.
Hardware devices, paper printouts, and air-gapped computers all serve as cold wallets.
Isolated from outside networks
- offlineNot internet-connected
- USBDevice connection standard
- vaultSecure storage chamber
- safekeepingProtective care of possessions
physical · isolation · Ledger · steel plate · fireproof · safe deposit box · disconnected · archive
Confidential decryption credential
- encryptionConverting data into code
- mnemonicTechnique for retention
- backupStored duplicate for recovery
- passphraseAuthentication word sequence
air-gapped · plausible deniability · self-custody · non-custodial · verification
Peer-to-peer electronic cash
- EthereumProgrammable blockchain network
- cryptocurrencyEncrypted decentralized money
- tokenRepresentative placeholder
- public addressBroadcast communication system
altcoin · digital assets · blockchain · staking · DeFi · NFT · accumulation · diamond hands
air-gapped
Isolated from outside networks
safekeeping · physical · isolation · Ledger · steel plate · fireproof · safe deposit box · disconnected · archive
private key
Confidential decryption credential
- encryptionConverting data into code
- mnemonicTechnique for retention
- backupStored duplicate for recovery
passphrase · air-gapped · plausible deniability · self-custody · non-custodial · verification
Bitcoin
Peer-to-peer electronic cash
- EthereumProgrammable blockchain network
- cryptocurrencyEncrypted decentralized money
- tokenRepresentative placeholder
public address · altcoin · digital assets · blockchain · staking · DeFi · NFT · accumulation · diamond hands
QR code
Two-dimensional scannable data pattern
- entropyQuantified chaos in systems
- random number generatorProduces unpredictable numerical outputs
- checksumError-detecting calculated value