South Korea Moves to Block 27 Unregistered Cryptocurrency Exchange Websites

Table of Contents

• You might want to know


• South Korea’s website restrictions


• Registration and compliance requirements


• Investor risks and support


• South Korea’s wider regulatory landscape


• Key Insights Table


• Afterwards...

You might want to know

• Why is South Korea extending restrictions on unregistered cryptocurrency exchanges from mobile apps to websites?


• What could the restrictions mean for customers who still hold assets on unauthorized platforms?

South Korea’s website restrictions

South Korea is moving to block access to the websites of 27 unregistered cryptocurrency exchanges. The platforms named include KuCoin, BitMart, and MEXC. The action broadens the country’s efforts to limit access to overseas trading services that have not completed the required registration process. Previously, authorities had restricted access to some of these exchanges’ mobile applications through Google and Apple.

The Financial Intelligence Unit (FIU) said the Korea Communications Standards Commission approved the website restrictions after reviews conducted on Oct. 6 and 7. The reported approach distinguishes between exchanges operating from overseas and those operating domestically: websites run from abroad will be blocked, while domestic operators may face termination of their services.

This step closes another channel through which South Korean investors could reach unregistered platforms. It also reflects a change in how regulators may respond to suspected unregistered activity. According to the FIU, authorities can seek website blocking once they identify such activity, without waiting for a court ruling or proof that customers have already suffered financial losses.

The FIU has not stated how long the restrictions will remain in place, nor has it announced a registration deadline for the exchanges affected. The measures therefore establish an immediate access restriction without specifying a timetable for a possible change in status. Whether an exchange can serve South Korean customers legally depends on meeting the country’s registration and compliance requirements.

The central issue is not simply whether a platform is accessible, but whether it is registered to operate and can meet South Korea’s applicable safeguards. A website block may make it harder for users to reach an exchange, but it does not itself resolve questions about the status or recovery of assets already held on that platform.

Registration and compliance requirements

Foreign cryptocurrency exchanges seeking to operate legally in South Korea and serve local customers must register with the FIU. They must also satisfy requirements related to security and anti-money laundering (AML). These obligations form part of the country’s approach to overseeing virtual asset service providers and reducing risks associated with unregulated financial activity.

Registration is significant because it gives regulators a formal point of oversight. Compliance requirements also establish expectations for how an exchange manages security risks and addresses illicit-finance concerns. An overseas platform that does not complete the required process may be treated as an unauthorized operator, even if customers can access its services through a website or an application.

The FIU did not provide a deadline by which the named exchanges must register. It also did not describe a specific procedure or schedule for lifting the restrictions. As a result, customers should not assume that a platform’s access status will change by a particular date. Exchanges themselves would need to address the relevant regulatory requirements if they seek to serve South Korean users lawfully.

KuCoin responded by saying it respects applicable laws and regulations across jurisdictions and continuously strengthens its compliance framework as regulatory requirements evolve. A spokesperson also said user assets remain safe and secure and that any further updates would be shared through the company’s official channels. BitMart, Phemex, and MEXC did not immediately respond to a CoinDesk request for comment.

Investor risks and support

The FIU warned that people using unauthorized platforms could encounter difficulties recovering their funds. This caution matters because access restrictions can complicate the process of signing in, transferring assets, or contacting a service provider. The warning does not establish that customers will necessarily lose their funds; rather, it highlights that users may have fewer practical options if they need to resolve an account or withdrawal problem.

To address potential difficulties, the FIU said it will work with the Digital Asset eXchange Alliance (DAXA), an industry association, to help affected customers withdraw funds where restrictions cause access problems. The announcement describes a cooperative effort to assist customers, while also urging investors to check whether an exchange is registered and to withdraw assets held with unauthorized operators.

Investors considering their next steps should distinguish between general regulatory guidance and the instructions of a particular exchange. They may wish to verify an operator’s registration status using official information, review the platform’s withdrawal procedures, and follow communications from the exchange through its official channels. Because access and withdrawal conditions can vary by platform, users should avoid assuming that procedures are identical across providers.

These measures also underline the importance of understanding where an exchange is regulated and which authorities oversee its services. A familiar brand name or an accessible application does not, on its own, demonstrate that the platform is authorized to serve customers in a specific country. Checking registration status can help users make informed decisions about the regulatory protections and potential limitations associated with a service.

South Korea’s wider regulatory landscape

The website restrictions form part of a broader effort to establish rules for digital assets in South Korea. The country’s proposed Digital Asset Basic Law has not yet come into force. If implemented, it would provide the groundwork for a legal framework covering areas such as the issuance, trading, and custody of digital assets, along with regulatory supervision.

Other regulatory changes have also been announced. In April, the Financial Services Commission and the Financial Supervisory Service announced new rules that removed the discretion exchanges had to allow users to bypass holding periods. This measure concerns how exchanges handle those periods and illustrates that regulatory attention extends beyond registration alone to operational practices and user protections.

The FIU said it has referred 44 unregistered operators to investigators. It also said it will pursue further website blocks against platforms that reopen using different addresses. The latter point addresses a practical challenge in digital enforcement: a website can move to a new address even after access to an earlier one has been restricted.

At the time described, only 28 virtual asset service providers were registered with the regulator. These figures provide context for the scale of oversight and enforcement described by the FIU, but they do not mean that every unregistered service has been subject to the same action. The announcement focuses on the 27 exchanges facing website restrictions and the regulator’s stated intention to continue responding to unregistered activity.

South Korean investors have also been moving substantial amounts of cryptocurrency overseas amid stricter rules. The source reported an estimated $110 billion leaving domestic exchanges in 2025. This figure illustrates the scale of reported cross-border movement, although it does not by itself explain individual investors’ motivations or establish that the regulatory changes were the sole cause.

Key Insights Table

Afterwards...

South Korea’s latest action raises broader questions about how governments can balance access to global digital-asset markets with safeguards for investors and financial systems. Website blocking can limit access to unregistered services, while registration rules establish standards for providers that wish to operate within the country. The practical effects depend on how consistently these rules are applied and how effectively users can obtain clear information about their options.

Further work could focus on reliable public tools for checking the registration status of digital-asset providers, clear procedures for customers affected by access restrictions, and effective coordination between regulators and industry groups. Authorities and researchers may also explore how to make cross-border enforcement more transparent while preserving due process and providing users with understandable guidance.

As digital-asset laws and technologies develop, continued attention to custody safeguards, cybersecurity, and customer communication will be important. Clear standards can help investors understand the protections available to them, while ongoing research can help regulators assess how restrictions affect market behavior and access to services. The proposed Digital Asset Basic Law and future regulatory measures will be important areas to watch as South Korea’s framework evolves.