One of the most difficult problems in crypto is custody — how to securely store large amounts of cryptocurrency. Unlike traditional assets, where you can rely on banks and brokers to hold things for you, crypto requires that someone literally holds the private keys. If those keys are lost or stolen, the funds are gone forever. For individuals, this is manageable with hardware wallets. For institutions holding billions of dollars, it requires sophisticated infrastructure.
The history of institutional crypto custody is relatively short. Before 2017, there were essentially no good options for a hedge fund or family office that wanted to hold large amounts of Bitcoin. You could use an exchange (risky), a hot wallet (dangerous), or some homebrew solution (error-prone). Most institutions simply avoided crypto because the custody problem was unsolved.
In 2017-2018, professional custody services began to emerge. Coinbase Custody launched, offering regulated custody for institutional clients. BitGo provided multi-signature wallet services. Fidelity Digital Assets launched in 2018, bringing the credibility of one of America’s largest asset managers to crypto custody. These services used cold storage (keeping keys offline), multi-signature schemes (requiring multiple parties to approve transactions), and insurance to give institutions confidence that their crypto was safe.
The importance of custody became especially clear during crypto crashes and exchange collapses. Institutions that had kept their crypto at FTX lost everything when FTX went bankrupt. Those using regulated custody services were protected. The “not your keys, not your coins” mantra applied even to the largest institutions — custody quality mattered enormously.
Custody has continued to evolve. Multi-party computation (MPC) has become a popular technique, splitting private keys into multiple pieces held by different parties. Nobody has the full key, but a transaction can still be signed when the parties cooperate. This eliminates single points of failure. Companies like Fireblocks and Copper have built businesses providing MPC-based custody for institutional clients. As more traditional finance moves on-chain, custody will become even more critical. The winners of the next phase of crypto may well be the companies that solve custody most elegantly — because in crypto, whoever holds the keys truly holds the wealth.
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