🪜 The Custody Ladder
From exchange account to full self-custody — one rung at a time.
Start the interactive lesson →
Rung 1: Someone holds it for you
Most people start by buying on an exchange (a company like a broker). Easy — but the company holds the keys.
Remember: whoever holds the keys holds the money. History’s receipts: Mt. Gox, Celsius, FTX — millions of users, billions lost, because "their" bitcoin was actually the company’s.
Hence the motto: "Not your keys, not your coins."
Quick check: When your bitcoin sits on an exchange, who actually controls it?
- You, obviously — you paid for it
- The exchange — you hold an IOU, they hold the keys ✓
- The government
It’s an IOU, like a bank balance. Fine for small amounts and short periods — dangerous as a life-savings strategy. FTX users learned this the hard way in 2022.
Climbing the ladder
- Rung 1 — Exchange: easiest; company holds keys. OK to start.
- Rung 2 — Mobile wallet: an app where YOU hold the keys (that seed phrase you practiced!). Great for spending-money amounts.
- Rung 3 — Hardware wallet: a small offline device (~$70–150) that keeps keys off the internet entirely. The standard for savings.
You don’t need to leap. Climb one rung when the amount starts feeling meaningful to you.
Quick check: A common rule of thumb: when should you move coins off an exchange into self-custody?
- Never — exchanges are fine forever
- When the amount would genuinely hurt to lose ✓
- Only when you have exactly 1 full bitcoin
A week of coffee money on an exchange? Low stakes. A month’s salary? Time to hold your own keys. Your risk tolerance sets the line — knowing the ladder means it’s a *choice*, not an accident.