Back to blog
|3 min read

The QuadrigaCX Collapse: Why 'Not Your Keys, Not Your Coins' Is Not Enough

The death of QuadrigaCX's founder — and the $190 million in customer funds locked in wallets only he could access — is a catastrophic failure of custody, governance, and operational controls. Self-custody is part of the answer. But the real lesson is about infrastructure.

custodyexchangessecurity
The QuadrigaCX Collapse: Why 'Not Your Keys, Not Your Coins' Is Not Enough

The QuadrigaCX Collapse: Why "Not Your Keys, Not Your Coins" Is Not Enough

The QuadrigaCX story is almost too absurd to be real. Gerald Cotten, the founder and sole operator of Canada's largest cryptocurrency exchange, reportedly died in India in December 2018. With him died access to approximately $190 million in customer funds — because Cotten was apparently the only person with the private keys to the exchange's cold wallets. No backup. No succession plan. No operational controls that would allow anyone else to access the funds.

The crypto community's immediate response was predictable: "Not your keys, not your coins." The implication being that anyone who left funds on an exchange deserved what they got, and that self-custody is the only responsible approach to holding digital assets.

That response is correct in a narrow sense and deeply inadequate in a broader one.

What Actually Failed

The QuadrigaCX collapse was not primarily a failure of users to self-custody. It was a failure of institutional controls at every level. A single individual had sole access to the exchange's cold storage — a practice that would be inconceivable at any regulated financial institution. There was no multi-signature arrangement requiring multiple parties to authorise withdrawals. There was no succession plan for key management. There was no independent audit of the exchange's reserves. And there was no regulatory framework that required any of these basic safeguards.

The result was a single point of failure so extreme that the death of one person — or, as many suspect, the disappearance of one person — could render $190 million in customer funds permanently inaccessible. This is not a technology failure. It is a governance failure, an operational failure, and a regulatory failure.

Why Self-Custody Is Not Sufficient

"Not your keys, not your coins" is a useful principle for individual security hygiene. But it is not a viable answer to the systemic problem that QuadrigaCX reveals. The vast majority of people who use cryptocurrency — and the vast majority of people who will use it in the future — are not capable of managing their own private keys securely. They will lose keys. They will fall for phishing attacks. They will make mistakes that result in permanent loss of funds.

More importantly, institutional adoption requires custodial services. Pension funds, endowments, and registered investment advisers cannot self-custody digital assets. They are legally required to use qualified custodians. If the crypto industry's answer to custody failures is "everyone should self-custody," it is effectively saying that institutional adoption is impossible. That is not a viable path forward.

The real answer is not self-custody for everyone. It is better custodial infrastructure — with the operational controls, governance structures, and regulatory oversight that prevent a QuadrigaCX from happening in the first place.

What Better Looks Like

Better custodial infrastructure means multi-signature arrangements where no single individual can access funds unilaterally. It means key management protocols with documented succession plans, tested regularly, and audited by independent parties. It means proof-of-reserves systems that allow customers and regulators to verify that the exchange actually holds the assets it claims to hold. It means regulatory frameworks that require exchanges to meet minimum operational standards — the same way that banks are required to meet capital adequacy, liquidity, and governance standards.

None of this is technically difficult. Multi-signature wallets exist. Proof-of-reserves protocols exist. Key management best practices are well-documented. The problem is not technology. The problem is that the crypto industry has operated for a decade without the regulatory and institutional frameworks that enforce these standards. QuadrigaCX is the predictable result.

My View

The QuadrigaCX collapse should be a turning point for how the crypto industry thinks about custody and exchange operations. Not because self-custody is wrong — it remains an important option for users who are capable of managing it. But because the industry needs institutional-grade custodial infrastructure that is safe enough for the people who cannot or should not self-custody. That infrastructure requires operational standards, regulatory oversight, and governance structures that the industry has been slow to build.

The lesson of QuadrigaCX is not "don't trust exchanges." It is "build exchanges that deserve trust."


"Not your keys, not your coins" is a security principle. It is not an infrastructure strategy. The crypto industry needs both — and the QuadrigaCX collapse is a brutal reminder of what happens when the infrastructure is missing.

Georgi Shulev

Georgi Shulev

Entrepreneur and fintech innovator at the intersection of agentic commerce, blockchain, and AI. Co-founder of Yugo.

Back to all posts