2key wallet is a non-custodial wallet. This means that the user alone can generate and restore the wallet without relying on or trusting any 3rd party service, including 2key.

Technically, 2key wallet is an HD cryptographic wallet, using the best standards of encryption custom to web3.0 wallets. It can hold any ERC20/231/777 tokens. 2key wallet is a Standard Hierarchical Deterministic (HD) wallet based on a BIP39 standard, which enables the wallets’ owner to generate or restore their wallet using a 12 words mnemonic, known only to the user. 

2key app automatically uses only the first of the derived path addresses (m/44'/60'/0'/0') as the specific wallet address for the user.