South Korea blocks 27 crypto exchanges, including KuCoin and MEXC, and Asia is watching

South Korea has taken one of the most aggressive steps any Asian country has made against offshore crypto exchanges. On 13 October, the country's anti money laundering watchdog, the FIU, ordered domestic access blocks on the websites of 27 unregistered overseas crypto platforms, including well known names KuCoin and MEXC, as reported by Cointelegraph.

The decision moves the fight from app stores to the open web. Korea had already pushed Google and Apple to restrict the apps of unregistered exchanges. Now it is going after the websites themselves, sending a clear message that serving Korean customers without registering will not be tolerated, however the access is offered.

Who is affected

The list reads like a directory of the offshore exchanges that have long courted Korean traders. Alongside KuCoin and MEXC, reports say it includes Phemex, Bitrue, XT.com, CoinW, Poloniex, BTCC, BitMart, BingX and DigiFinex. Many of these platforms offer products such as high leverage derivatives and newly listed tokens that are not available on Korea's licensed domestic exchanges, which is exactly why they attracted Korean users in the first place.

The legal problem is simple. Korea requires crypto businesses serving its residents to register under its anti money laundering law, which brings obligations such as real name bank accounts and strict identity checks. The FIU says the targeted platforms have not registered. In its view, they are operating illegally in the Korean market, and the website blocks are the enforcement tool it has chosen.

The mechanics depend on where each platform runs its technology. Websites hosted overseas face domestic access blocks, meaning Korean internet providers will be instructed to stop users reaching them. Platforms using domestic infrastructure face service termination, a more direct shutdown of their Korean operations.

From app stores to the open web

This is the latest stage in a campaign that has been building for more than a year. In March 2025, Google Play restricted 17 unregistered exchanges in Korea, including KuCoin and MEXC. In April 2025, Apple's App Store followed with restrictions on 14 apps. Each step narrowed the routes Korean users could take to reach offshore platforms.

The website blocks close one of the last easy routes. Users could previously download apps from other regions or simply use the web versions of exchanges, but with the sites themselves blocked, the friction rises sharply. Determined users may still find workarounds, but the official message is unmistakable, as Crypto Briefing noted when reporting the scope of the action.

Every block narrows the road, and eventually most traders take the licensed route rather than keep finding detours.

Regulators have gone further than blocking. Reports say authorities have referred 44 unregistered crypto operators to investigators, which suggests the website blocks are part of a broader enforcement push rather than a one time action.

What it means for Korean traders

The most immediate concern for users is access to their funds. Reports note that customers could have difficulty withdrawing assets once the blocks take effect, which is why traders with balances on affected platforms are being urged to move funds while they still can. Anyone holding assets on these exchanges should act promptly rather than wait.

For the domestic industry, the crackdown is good news. Korea's licensed exchanges, which operate under strict rules, have long complained that offshore rivals compete unfairly by offering products and leverage they cannot. As BeInCrypto asked in its coverage, the key question is whether Korean money will come home to licensed platforms once offshore access becomes harder.

Some exchanges have responded cautiously. KuCoin said it was monitoring regulatory developments and would cooperate with requirements, a tone that suggests offshore platforms prefer to avoid open confrontation with regulators in an important market.

Lessons for the rest of Asia

Korea's approach is likely to be studied closely by regulators across the region. Southeast Asian markets face the same challenge, with residents trading heavily on offshore platforms that are not licensed locally. Thailand, the Philippines and others have issued warnings and taken action against specific platforms, but few have combined app store pressure, website blocks and criminal referrals as systematically as Korea.

The practical lessons for exchanges and regulators are becoming clearer:

• Regulators increasingly treat serving residents without a licence as illegal, regardless of where a platform is based.
• App store and website blocks are now standard enforcement tools across Asia, not exceptional ones.
• Licensed local players benefit as offshore access is restricted, which strengthens the case for registration.
• Users bear the risk when platforms are blocked, especially around access to withdrawals.

We have tracked similar pressure in Southeast Asia, from the Thai SEC's crackdown on crypto exchanges to the Philippines' moves against unregistered platforms. Korea has simply gone further and faster than most.

Why Korea is so strict

Korea's tough stance has roots in its own crypto history. The country has one of the most active retail trading cultures in the world, and periods of frenzied speculation in past cycles left many ordinary investors with heavy losses. Regulators responded by building a framework that ties crypto trading to real name bank accounts, so that every won entering an exchange can be traced to a verified person.

That framework only works if trading stays inside licensed platforms. When Korean users move to offshore exchanges, they leave the protections behind, including identity checks, segregation of customer funds and the ability of local authorities to investigate fraud or market manipulation. From the regulator's perspective, every offshore account is a gap in the system, and the website blocks are an attempt to close those gaps.

There is also a capital flow dimension. Money moving to offshore exchanges is money that leaves Korea's regulated financial system, and authorities have long been sensitive to outflows that bypass the banking system. Keeping trading onshore keeps that activity visible, taxable and subject to Korean law, which is why the government has been willing to accept the criticism that comes with blocking popular platforms.

The bigger question for offshore platforms

For global exchanges, Korea's move raises a strategic choice that can no longer be postponed. They can invest in local registration, which is expensive and comes with strict rules, or they can accept being shut out of one of the world's most active crypto trading markets. The middle option, serving users quietly from offshore, is disappearing.

That choice is being forced across Asia, not just in Korea. As more regulators adopt similar tactics, the cost of operating without licences rises, and the value of being properly registered in key markets grows. Exchanges that move early to secure licences may find themselves with a significant advantage as competitors are blocked.

The broader effect may be a more fragmented but more regulated Asian crypto market, where each major country has its own licensed players and offshore platforms are steadily pushed to the margins. For traders, that means fewer choices but potentially stronger protections, and for regulators it means a clearer line between legal and illegal activity.

South Korea's website blocks mark a turning point in how Asian regulators deal with offshore crypto exchanges. The era of serving a major market quietly without a licence is ending, and Korea has shown it is willing to use every tool available to enforce its rules. For exchanges, the choice is now stark: register and comply, or accept that the door to one of the world's most active trading markets is closing.