"My coins are sitting in my account — why would it matter to me if the platform gets into trouble?" Most people ask that seriously for the first time on the day a withdrawal freeze makes the news.

The answer isn't in the price chart or in a platform's reputation. It lives in two places: how the agreement you accepted at sign-up is worded, and what a court looks at if it ever gets that far. This piece stays on that one question, and separates out what "1:1 reserves" and an emergency fund each do and don't tell you. Where to keep coins, how to move them out, how to harden the account — other pieces on this site cover those, and they're linked at the end.

1. What the platform itself calls that balance

You don't need a critic's framing for this. The exchange's own teaching material says it plainly. Binance Academy's piece on custodial and non-custodial wallets defines the first kind this way: "A custodial wallet is one where a third party, typically a cryptocurrency exchange or a dedicated wallet service, holds and manages the private keys for you." The other kind: "A non-custodial wallet gives you complete control over your private keys."

The consequence is spelled out in the same article: "You rely on the custodian to process your transactions and safeguard your funds." And on the slogan everyone repeats, the article says: "The phrase 'not your keys, not your coins' captures the idea that funds held in a custodial wallet are ultimately in the control of the custodian rather the user." (Quoted as published, typo included — Binance Academy: custodial vs non-custodial wallets, checked 2026-09-16.)

So the balance you see is a record in the platform's system, while the coins on-chain answer to keys the platform holds. That much is agreed on by everyone, including the exchange.

The open question is the next one. Under the rules, is that record something of yours held for safekeeping, or a debt the platform owes you? That isn't a technical question, and no amount of reading about blockchains will settle it. You have to look at documents.

2. The terms decide it: one real ruling

A decision from early 2023 shows how this plays out. According to a case note from the law firm Morrison Foerster, "On January 4, 2023, Judge Glenn of the United States Bankruptcy Court for the Southern District of New York issued a much-awaited decision", dealing with who owned the customer assets in Celsius's Earn (interest-bearing) accounts.

The first thing the court examined was the contract. The note quotes the wording customers had accepted: they "grant[ed] Celsius all rights and title"; the assets were "Celsius' property, in every sense and for all purposes"; and the platform "may lend, sell, pledge, hypothecate, assign, invest, use, commingle or otherwise dispose of" them.

The conclusion followed the wording: "title to and ownership of all Earn Assets unequivocally transferred to the Debtors", and those assets "are presumptively property of the bankruptcy estate". The note also gives the scale — the Earn assets were "constituting of 77% of assets on the platform, with a market value of approximately $4.2 billion as of the bankruptcy filing". It wasn't an absolute door-slam either: the note records that "the Court left the door open for individual customers to rebut that presumption based on defenses or other circumstances unique to them." In practice, though, most people in that position end up queueing alongside the other creditors rather than pointing at specific coins.

Don't read this as a universal verdictIt concerned Celsius's Earn accounts and turned on Celsius's own contract language. Different platform, different product, different governing law — possibly a different answer. What the ruling teaches a retail user isn't "exchange coins are never yours"; it's that the answer sits in a document most people never finish reading, not in the green number on the screen. (Case note: Morrison Foerster, checked 2026-09-16.)

3. When there is a payout, it arrives as cash

Even where money does come back, it isn't what you put in. FTX's plan is the example people can look up. CBS News reported on 8 May 2024 that customers and creditors claiming $50,000 or less "will get about 118% of their claim, according to the plan, which was filed with the U.S. Bankruptcy Court for the District of Delaware"; the same report said the exchange estimated it had "between $14.5 billion and $16.3 billion to distribute to customers and other creditors around the world".

Finance Magnates put the mechanism more bluntly the same day: the plan was to repay "98 percent of its creditors up to 118 percent of their claims in cash".

That 118% invites a misreading. It is a percentage of a claim, not of the coins you deposited, and it is paid in money. In between sits whatever the market did over those years. If one line from this piece is worth keeping, it's this one: a bankruptcy process returns an amount, not an asset.

Both figures come from May 2024 reporting. Whether the plan changed afterwards, and how far distributions actually got, is a matter for court filings and current announcements; we haven't tracked it beyond that point.

4. What "1:1 reserves" actually proves

Reserve pages get treated as proof that "my coins are safe", so it's worth being precise. Binance's proof-of-reserves page states: "Binance has funds that cover all of our users assets 1:1, as well as some reserves." The page describes the method as using a Merkle tree together with zk-SNARKs (Binance proof of reserves, checked 2026-09-16).

That answers a sufficiency question: does the platform hold assets covering what users hold. Publishing it is better than not publishing it.

What it does not answer is the question from sections 1 and 2 — who the balance belongs to under the rules. The two live in different documents: one in a technical report, the other in an agreement and in law. A good coverage ratio doesn't edit a contract. That sentence is our reading, not a quote from the page.

One more thing to check for yourself: the snapshot date and how often it refreshes weren't displayed on the page when we checked, so this article doesn't state either. If you want to lean on the figure, open the page and see what it shows at that moment.

5. What an emergency fund is written to cover

The other thing that gets cited is the emergency fund. A Binance blog post dated 31 January 2022 describes it: "The Secure Asset Fund for Users (SAFU) is an emergency insurance fund that was established by Binance in July 2018 to protect users' interests." On funding, the same post says "Binance began allocating 10% of all trading fees to provide insurance for potential security breaches."

On size, the post says the fund "was valued at US$1 billion based on the opening price on January 29, 2022", and immediately adds that "the value of the fund will fluctuate based on the market." So the honest phrasing is: in the order of a billion dollars, moving with the market, per whatever the official announcement shows at the time (checked 2026-09). The composition has been adjusted since — Cointelegraph reported on 30 January 2026 that Binance was shifting SAFU from stablecoins into Bitcoin and would "use our treasury reserves" to top the fund up if it dipped below $800 million. Treat composition as something that changes by announcement.

The part that matters most is what the fund is described as being for: security breaches. The official page doesn't set out what happens in an insolvency, so we won't answer that on its behalf — not "covered", not "not covered", just: the page stops there. (Binance SAFU blog post, checked 2026-09-16.)

6. Three things you can check today

There's no "and therefore you should" at the end of this piece — that depends on how much you hold, where you live and how often you trade. What there is instead: three actions that will tell you more about your own situation than ten explainers will.

  • Read the agreement you accepted. Find the clauses on digital assets, custody and how the platform may deal with them, and notice whether the language is about holding assets for you or, as in the Celsius contract, about broad rights to use them. We couldn't retrieve a quotable copy, so we won't paraphrase one — go by the version you accepted and the current one.
  • Separate "trading money" from "long-term money". They carry different risks and don't belong in the same place. For moving the second kind out, see how to withdraw to your own wallet; before opening a second venue, the costs are laid out in should you spread crypto across several exchanges.
  • Treat the platform as something you assess, not a given. Warning signs are in could an exchange collapse, and the criteria for picking one in the first place are in how to choose a crypto exchange.
One note from the editorsMy own habit: the portion I don't need to touch doesn't stay in any exchange account. That isn't a verdict on any particular company — to be clear, we haven't read a quotable copy of anyone's agreement and we're not ranking whose terms are kinder. It's that I'd rather this question not depend on a document I haven't read in full and that can be revised without me noticing. If you weigh it up and decide the trade-off is fine for you, that's a legitimate answer too, as long as you know which trade-off you took.

7. Common questions

If a platform publishes 1:1 reserves, does that mean the coins are still mine?

Those are two separate questions. A reserve page speaks to sufficiency: Binance's proof-of-reserves page states that "Binance has funds that cover all of our users assets 1:1, as well as some reserves."

Who the balance line belongs to under the rules is settled by the agreement you accepted and the law that applies to it, and a coverage figure does not rewrite either. Both things matter; neither substitutes for the other.

If an exchange does fail, do I get my actual coins back?

There is no general answer, only cases. One worked example: CBS News reported on 8 May 2024 that under FTX's plan, customers and creditors claiming $50,000 or less "will get about 118% of their claim, according to the plan, which was filed with the U.S. Bankruptcy Court for the District of Delaware". Finance Magnates reported the same day that the plan was to repay "98 percent of its creditors up to 118 percent of their claims in cash". So even where there is a payout, what comes back is money calculated from a claim, not the coins you deposited.

Which document should I actually read about my own account?

The user agreement you accepted at sign-up, specifically the clauses on digital assets, custody and how the platform may deal with them. We could not retrieve a quotable copy of that agreement, so we will not paraphrase what it says; open the current version and read those clauses yourself. That is the lesson of the Celsius ruling: the court followed the contract wording, and contract wording differs between platforms and gets revised.

Compressed into a sentence: the interface tells you how much, never what it is. Finding out the second part leaves two routes — read the document, or arrange things so that part of your holdings no longer depends on it. The first can be done tonight. The second means learning, once and properly, how to back up a key. Neither is effortless, and both beat opening the agreement for the first time on the day it matters.

Lin Yue · Bitu editorial
Notes on using crypto exchanges, written for beginners. Lin Yue is a pen name — we don't pretend to be anyone's expert, we just write down the steps and traps we've checked and re-checked. For anything involving money, go by the official pages and your own verification. Nothing here is legal advice.