You opened a Coinbase account. Then maybe a Swan account. Then River. Maybe you moved some to Gemini because you didn't want everything in one place. You thought spreading bitcoin across multiple exchanges was diversification.
It's not.
Every exchange you use is single-institution custody. One company holds the keys. One company controls access. One company's security infrastructure stands between your bitcoin and a loss. You haven't reduced your risk. You've multiplied the number of places where a single failure can result in permanent loss.
This isn't hypothetical. FTX, Celsius, BlockFi, Voyager, Genesis, and Mt. Gox collectively lost billions in client assets through fraud, mismanagement, or insolvency. In February 2025, Bybit lost $1.5 billion in a single breach — the largest hack in crypto history.
There's a third option now.