At-a-glance: What this guide covers
Self-custody fundamentals: seed phrases, passphrases, backups, and air-gapped signing (PSBT).
Cold storage hardware and backup schemes, including SLIP-39 Shamir shares.
Multisig vs. MPC, and when to consider each.
Custodial options, “qualified custodians,” and what insurance really covers.
Phishing and supply-chain risks to avoid (pre-seeded devices, fake apps).
DeFi hygiene: managing token approvals and safer signing with EIP-712.
Inheritance…
