Can You Seize Bitcoin in South Korea? Crypto Asset Enforcement

You finally won your judgment in South Korea, but when you search the debtor’s assets there is no real estate and no bank balance — only a few Bitcoin sitting in an exchange account. Someone tells you “crypto can’t be seized.” Should you give up? The short answer: under South Korean law, virtual assets are a legitimate enforcement target.

Enforcing against crypto differs from attaching real estate or a bank deposit: the key is identifying which right you capture and how. You do not grab the coin directly — you attach a claim the debtor holds against the exchange, and then a separate step is needed to turn that claim into cash. Atlas Legal has organized the structure of crypto asset enforcement in South Korea, the actual cases, and the practical limits — with particular attention to foreign creditors operating in the Incheon Free Economic Zone (IFEZ).

1. Can virtual assets be seized in South Korea?

Yes. Once the Supreme Court of Korea recognized Bitcoin as “an intangible asset with property value,” virtual assets became property rights capable of compulsory enforcement.

In a case involving the confiscation of Bitcoin received as proceeds of an illegal website, the Supreme Court of Korea held that Bitcoin qualifies as “an intangible asset with property value that can be transferred, stored, and traded electronically” and is therefore subject to confiscation (Supreme Court of Korea, May 30, 2018, 2018Do3619). The ruling confirmed that a virtual asset is not mere data but a legally protected property right.

One caveat: that case concerned criminal confiscation. It laid the foundation of property status — that crypto can be an enforcement target — but it did not decide how, in civil enforcement, a coin is actually attached and realized. That methodology is left to applying the general principles of the Civil Execution Act to virtual assets.

2. What exactly are you attaching — the coin or the withdrawal claim?

For coins held on an exchange, you attach not the coin itself but the debtor’s “withdrawal claim” against the exchange — the contractual right to have the coins transferred out. This falls under Article 251 of the Civil Execution Act, governing enforcement against “other property rights.”

A user who deposits coins with an exchange does not directly control the on-chain asset; instead the user holds a contractual right to demand that the exchange transfer (withdraw) the coins. Enforcement targets exactly this withdrawal claim. Because that right does not fit neatly into real estate, tangible movables, or a monetary claim, it is attached under Article 251 of the Civil Execution Act (enforcement against “other property rights”).

Understanding this structure dispels the myth that “crypto can’t be seized.” The court does not seal the digital asset directly; it treats the exchange that custodies and manages the coins as a third-party debtor and freezes the debtor’s claim — preventing the exchange from releasing the coins to the debtor.

3. Why name both the exchange and its partner bank as third-party debtors?

An exchange account holds not only coins (a withdrawal claim) but also a separate monetary claim for the Korean won deposit. The two rights are attached and realized differently, so in practice the exchange and its partner bank are named together.

A user’s assets on an exchange fall into two streams. One is the withdrawal claim for the coins themselves (a delivery-type claim); the other is the claim for the Korean won deposit charged up for trading (a monetary claim). The won deposit can be turned into cash directly through an ordinary attachment and collection or assignment order (Article 223 et seq. of the Civil Execution Act). The coin withdrawal claim, as we will see, needs a separate realization step.

That is why a creditor names both the exchange (coins and won deposit) and the exchange’s real-name partner bank (the verified deposit-and-withdrawal account) as third-party debtors, freezing every recoverable asset.

4. How is seized crypto converted to cash?

A coin withdrawal claim is a delivery claim, not a monetary claim, so an ordinary collection order alone will not satisfy the creditor. In practice, a court secures the coins through a delivery order and then realizes them through a special realization method (sale).

With a monetary claim, a collection order is enough: you collect from the third-party debtor and apply it to the debt. But a coin withdrawal claim says “deliver the coins,” not “pay money,” so a collection order alone leaves the creditor short. Two further steps follow.

First, the court applies Article 243 of the Civil Execution Act by analogy — the provision on enforcing claims for delivery of tangible movables — to issue a delivery order requiring the exchange to hand the coins it custodies to the execution officer. Second, the officer realizes the secured coins through the special realization method (sale, etc.) under Article 241 of the Civil Execution Act and distributes the proceeds. In short: attach, deliver, then sell to realize.

Practice varies by court, and because crypto prices swing sharply, disputes can arise over the timing and method of sale. That is why it matters to design the application with the delivery order and special realization in mind from the start.

5. Are there actual cases of seizing crypto on an exchange?

Yes. Courts have actually issued (provisional) attachment orders naming an exchange as third-party debtor, and in at least one matter enforcement proceeded all the way to realization. That said, no published Supreme Court decision yet confirms recovery completed purely by collecting on exchange-held coins.

(1) Provisional attachment of a withdrawal claim (Upbit matter) — A court issued a provisional attachment order targeting a debtor’s crypto withdrawal claim arising from the debtor’s electronic wallet on the exchange. The provisional attachment was later canceled for insufficient proof of the underlying claim, but that was a question of the merits of the right — the eligibility of the withdrawal claim for attachment itself was recognized.

(2) Delivery order plus special realization (Coinrail hacking case) — After a victim of an exchange hack won on the merits, the victim attached the return claim for roughly 1,360 Ether that investigators had seized. The Seoul Central District Court applied Article 243(1) of the Civil Execution Act by analogy, issued a delivery order to “hand over to the execution officer,” and proceeded to special realization. Note this was a variation — attachment of a return claim against seized evidence held by investigators, not coins custodied by the exchange.

(3) Tax authority collection — Though not civil enforcement, when the tax authority attached a high-value delinquent taxpayer’s exchange account (withdrawal claim), the taxpayer immediately paid in cash. It illustrates how effective an attachment naming an exchange as third-party debtor can be as leverage.

(4) Delivery-plus-substitute-value judgment — Where an exchange system error wrongly credited about KRW 20 billion in virtual assets (USDT), a court ordered the defendant to “deliver 1,739,236 USDT, and if compulsory enforcement is impossible, pay the equivalent converted at KRW 1,466 per unit,” and the judgment became final (Seoul Northern District Court, Feb. 12, 2026, 2024Gahap22393). It built both in-kind delivery and a substitute monetary value (compensation in lieu) into the judgment.

In sum, (provisional) attachment orders naming an exchange as third-party debtor are in fact being issued, but no published Supreme Court decision yet runs the full course of “exchange-held coins → exchange as third-party debtor → satisfaction by collection.” Current practice fills that gap with attachment of the Korean won deposit at the partner bank and a special realization order.

6. Can crypto in a private (cold) wallet be seized?

In practice it is very difficult. Coins held in a cold wallet whose private key the debtor controls have no third-party debtor to comply with an attachment. That makes a swift freeze at the preservation stage decisive.

Coins on an exchange can be seized because there is a third-party debtor — the exchange — that manages them. But once the debtor moves coins to a personal wallet and holds the private key, there is no third-party debtor who can be ordered to release them. Even if the court issues an attachment order, there is no counterpart to enforce it against.

The success of crypto recovery therefore turns on how quickly you provisionally attach the exchange withdrawal claim before the debtor siphons the coins into a private wallet. If the assets leak out while you wait for the main judgment, recovery becomes impossible — so freezing the assets first with a preliminary measure, then pursuing the main action and realization, is the order that matters most.

7. What should foreign companies and investors in the IFEZ keep in mind?

Foreign creditors enforcing in South Korea — including companies and investors in the Incheon Free Economic Zone — should identify the debtor’s exchange and freeze the withdrawal claim early. The framework resembles garnishing an exchange as the functional equivalent of a bank.

The Incheon Free Economic Zone (IFEZ) — comprising Songdo International Business District, Cheongna International City, and Yeongjong International City — hosts many foreign-invested companies, and cross-border debt recovery increasingly involves crypto. For a foreign creditor with a Korean judgment or a judgment to be recognized and enforced in South Korea, the practical steps mirror the domestic structure above: identify which exchange holds the debtor’s assets, then name the exchange and its partner bank as third-party debtors.

The approach will feel familiar to those used to common-law practice. In the United States, courts treat an exchange as the functional equivalent of a bank and serve a writ of garnishment on it, so that the exchange freezes the account and converts the coins to dollars; coins held on Coinbase or Kraken have been treated as intangible personal property subject to garnishment, and recoveries of around USD 12,000 have been reported. Open questions remain there too — for example, whether a court of one state has in-rem jurisdiction over an exchange headquartered elsewhere. The common thread, in both systems, is to identify the debtor’s assets and bind the exchange as a third-party debtor before the coins move beyond reach.

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About the Author

Soyoung Park | Representative Attorney

Family Law, Inheritance, Construction & Real Estate Disputes

Judicial Research and Training Institute, 33rd Class

Korea University, Department of Law

Atlas Legal | Incheon Songdo, South Korea

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