Crypto Self-Custody for High Net Worth Individuals: Securing $1M+ in Digital Assets

Holding $1 million+ in crypto requires institutional-grade security. This guide covers multi-sig setups, geographic distribution, inheritance planning, and custodial vs. self-custody trade-offs at scale.

The security requirements for $1 million+ in crypto are fundamentally different from smaller holdings. Single-key hardware wallets, while suitable for most users, have failure modes that are unacceptable at this scale. Institutional-grade self-custody uses multi-signature setups, geographic distribution, and formal processes.

Multi-Signature (Multi-Sig) Architecture

Geographic Distribution

Institutional Custody vs. Self-Custody

At $5M+ in crypto, consider qualified custodians (Coinbase Custody, BitGo, Anchorage) as a complement to self-custody. Institutional custodians offer: SOC 2 audited security, insurance up to $320M, regulatory compliance for institutional accounts, and estate planning support. The trade-off: counterparty risk and fees (0.1–0.5% annually).