Your Keys, Your Coins: Custody Risk in New Zealand

What custody risk actually means for your crypto

When you buy Bitcoin or Ethereum on an exchange, you are trusting that platform to hold the asset for you. That arrangement is called custodial custody, and it carries a specific risk: if the exchange fails, is hacked, or freezes withdrawals, your crypto can be stuck or lost. Custody risk is not about price volatility; it is about who controls the private keys and what recourse you have if that party lets you down.

In New Zealand, most people first encounter crypto through a custodial service. Easy Crypto is non-custodial for the coins you buy, but it relies on partners for settlement, while Swyftx and similar Australian platforms hold assets on your behalf. ANZ and other local banks do not offer crypto custody, so the choice usually comes down to an offshore exchange, a local non-custodial service, or a hardware wallet you control yourself.

The Financial Markets Authority has been clear that cryptoassets are largely unregulated here. There is no deposit insurance scheme for crypto, and no equivalent of the Ombudsman for financial service complaints if an offshore exchange goes under. Understanding that gap is the first step to managing it.

How to tell whether you are exposed

Ask one question: can you move your coins without permission from anyone else? If the answer is no, you are relying on a custodian. That is not automatically bad — regulated custodians exist and can be convenient — but you need to know the trade-off. A custodial exchange may offer insurance, proof-of-reserves reports, or segregation of client assets. A non-custodial wallet gives you full control, but also full responsibility for backups.

Common warning signs include platforms that discourage withdrawals, offer unusually high yield on deposits, or are vague about where the assets are held. The collapse of several offshore lenders in recent years showed how quickly custodial risk can become real. In New Zealand, the fallout was felt by people who had sent funds to platforms with no local presence and no clear legal pathway to recover them.

Custodial versus self-custody in practice

A typical scenario: a Wellington freelancer buys ETH through a local service and leaves it on the platform because moving it feels technical. Months later, they want to pay a contractor in crypto and discover the platform has introduced new verification requirements and withdrawal limits. The funds are still theirs, but access is delayed. With a hardware wallet, the same person would have signed a transaction in minutes, provided they had kept their recovery phrase safe.

Self-custody is not risk-free. Lost seed phrases, phishing sites, and malware are real threats. The safest crypto wallet is one you understand and can recover without relying on a third party. For most beginners, that means a reputable hardware wallet and a written backup stored offline, not a screenshot on your phone.

Practical steps to reduce custody risk in New Zealand

Start by separating your holdings by purpose. Money you trade frequently can stay on an exchange with strong withdrawal policies and a track record. Savings you do not intend to touch should be moved to a wallet you control. Many New Zealanders use a hybrid approach: a small balance on a platform like Swyftx or Easy Crypto for convenience, and the bulk in self-custody.

Check where the custodian is regulated. An offshore exchange may be registered with a foreign regulator, but that does not give you a direct route to complain in New Zealand. Look for published reserve reports, clear terms on asset segregation, and a history of processing withdrawals during market stress. If a platform offers a crypto voucher scheme or referral bonuses that encourage you to leave funds on the platform, treat that as a nudge to review your exposure.

Keep records for tax. Inland Revenue treats crypto as property for most purposes, and disposals can trigger taxable events. If you self-custody, you still need to track acquisition costs and transaction dates. Good custody hygiene includes keeping a simple spreadsheet or using portfolio software that records wallet addresses and exchange statements.

Scams, jobs, and the local landscape

Custody risk is not only about corporate failure. Scammers exploit the confusion between custodial and non-custodial setups. A common New Zealand pattern involves fake job offers in crypto that ask you to receive funds into your own wallet and forward them elsewhere — making you an unwitting money mule. Legitimate crypto jobs will not ask you to use your personal wallet for company transactions.

Be sceptical of celebrity-endorsed tokens and viral coins. The hawk tuah girl crypto coin episode is a reminder that attention-driven launches can collapse quickly, and custody of such tokens on an exchange does not protect you from the underlying project failing. Similarly, a bitcoin scammer list circulated online can be useful, but it is no substitute for verifying a platform's withdrawal record yourself.

For beginners, the most useful habit is to test withdrawals early. Buy a small amount, move it to your wallet, and confirm you can recover access. Do this before you build a larger position. In a market that trades around the clock, the ability to move your own coins is the difference between having an asset and having a promise.