What is crypto custody?
Crypto custody is how a regulated institution safeguards the private keys that control your Bitcoin, Ethereum, and stablecoins — so you keep exposure to the assets without carrying the operational risk of self-custody.
A custodian's job is to make the practical experience of holding digital assets look and feel like a bank account, while preserving the cryptographic guarantees that make crypto valuable in the first place: verifiable balances, permissioned outflows, and no rehypothecation.
How institutional custody works
Client-facing deposit addresses are generated from hierarchical-deterministic (HD) wallets whose root keys live only inside hardware security modules. Deposits are watched on-chain, screened through KYT, and credited to the client ledger. Reserves sit in cold storage; a small, capped hot balance handles day-to-day flows.
Every outbound transaction requires policy checks (whitelisted destinations, velocity limits, dual approval) and a threshold signature from independent custodians. No single operator can move funds — and every action is logged to an append-only audit trail.
Custody vs self-custody
Self-custody puts you in full control of a seed phrase. That is powerful — and unforgiving. Institutional custody trades absolute control for resilience: multi-party approval, insurance, SOC 2 controls, and proof-of-reserves so you can still verify what backs your balance.
Why it matters for a bank
Combining regulated fiat rails with crypto custody in one account removes the weakest link most people have today: the transfer between exchange, wallet, and bank. Fewer venues, fewer keys, fewer moments where something can go wrong. See our security architecture and product suite for details.
Frequently asked
What is crypto custody?
Crypto custody is the practice of safeguarding the private keys that control digital assets on behalf of a client. An institutional custodian like The Vision Bank stores those keys in redundant, geographically distributed hardware security modules (HSMs) and enforces multi-party approval on every outbound transaction, so no single individual — internal or external — can move funds.
How does crypto custody work?
Client deposit addresses are derived from HD wallets whose root keys never leave secure hardware. Deposits are monitored on-chain, credited to the client's ledger balance, and swept to cold storage on a schedule. Withdrawals go through KYT screening, policy checks (whitelists, velocity limits, dual approval) and are then signed by a threshold of custodians.
How does institutional crypto custody differ from a wallet app?
Retail wallets keep a single seed phrase on one device — losing it or getting phished means losing the assets. Institutional custody uses multi-signature or MPC schemes, hardware-enforced isolation, insurance, SOC 2 controls, and proof-of-reserves attestations, so the security model does not depend on any single person, device, or venue.
Can banks custody crypto?
Yes. Regulated banks and e-money institutions can custody crypto assets provided they meet the local regime for safeguarding, capital, and disclosure. The Vision Bank operates as a regulated custodian in the United Kingdom and publishes a weekly Merkle proof of reserves so clients can independently verify their balance is fully backed.
What happens if a crypto custodian gets hacked?
A well-designed custody stack limits blast radius: cold reserves hold the vast majority of assets and require multi-party physical + cryptographic approval, hot reserves are capped and insured, KYT flags anomalous flows, and independently-attested proof-of-reserves lets clients confirm liabilities are fully covered even after an incident.
Do private banks offer crypto custody?
A small number of private banks now offer crypto custody. The Vision Bank was built as a private bank from day one for clients who want their fiat, crypto, lending and card services in a single regulated account rather than fragmented across a bank plus an exchange plus a wallet.