# Crypto Wallet A crypto wallet does not actually "hold" coins — the coins live on the [[Blockchain]]. The wallet holds the [[Private Key]] that authorizes spending from a given address. Whoever controls the key controls the funds, which is why the wallet is the single most security-critical object in crypto. Wallets divide along two axes: **hot** (connected to the internet, convenient, more exposed) versus **cold** (offline hardware or paper, safer for long-term storage); and **custodial** (a company like [[Coinbase]] holds the keys for you) versus **non-custodial** (you hold your own keys — the [[Self-Custody]] model). ## Why the term matters The custodial-versus-non-custodial distinction is where crypto's ideology lives. A custodial wallet is, functionally, a bank account: convenient, recoverable if you forget your password, and seizable, freezable, or subject to [[Debanking]] by the company or by court order. A non-custodial wallet is closer to cash in a mattress that only you can open — no one can freeze it, but no one can recover it either, and there is no customer service if you lose the key. This trade-off is the practical content of crypto's promise of financial sovereignty. The movement's rallying cry — **"not your keys, not your coins"** (see [[Self-Custody]]) — is an instruction to move funds off exchanges into wallets you control, precisely so that no intermediary can deny you access. That promise gained emotional force from real episodes of [[Debanking]] and from the [[Operation Choke Point 2.0]] grievance narrative, where the wallet is framed as the citizen's escape hatch from a financial system that can be turned against them politically. The same property makes wallets the favored instrument of sanctions evasion and [[Money Laundering]], which is the state's counter-argument: an asset no one can freeze is also an asset no court can recover from a criminal. ## See Also - [[Private Key]] — what the wallet actually protects - [[Self-Custody]] — the non-custodial ideology - [[Debanking]] — the grievance self-custody answers - [[Coinbase]] — the largest custodial-wallet provider