A software application or hardware device that stores private keys and enables users to manage, send, and receive cryptocurrencies and digital assets on blockchain networks, with self-custody wallets providing complete user control over private keys without third-party intermediaries.
Semantic Classification
Content
Technical Details
- Wallet Types:
- Non-custodial (self-custody): User controls private keys
- Custodial: Third party manages keys
- Smart contract wallets: Account abstraction features
- Hot wallets: Internet-connected software
- Cold wallets: Offline hardware devices
- 2024 Developments:
- Mastercard Web3 card program with MetaMask integration
- Smart wallets with social recovery features
- Account abstraction hiding blockchain complexity
- Batched transactions and programmable features
- Popular Web3 Wallets:
- MetaMask: EVM-compatible blockchains
- Phantom: Solana, Ethereum, Polygon
- Trust Wallet: Multi-chain mobile wallet
- Ledger/Trezor: Hardware cold storage
- Security: Cold wallets safest; never share private keys
Applications
- Cryptocurrency storage and transfer
- DeFi protocol interaction
- NFT management
- Web3 application authentication
- Decentralized identity management