South Korea blocks 27 unregistered crypto exchanges

TLDR

South Korea's financial regulators have ordered domestic access blocked to 27 unregistered crypto exchange websites, including KuCoin and MEXC, under its anti-money-laundering rules.

1. Authorities are cutting off Korean access to 27 overseas platforms that did not register locally, extending earlier bans on their mobile apps.
2. Korean users may face withdrawal frictions and reduced choice, but regulators say registered domestic exchanges have far lower fees and stronger oversight.
3. The move fits a broader tightening of South Korea's crypto framework, so further blocks, licensing demands and tax and user-protection rules are likely.

Deep Dive

1. Scope Of The Block

South Koreas Financial Intelligence Unit (FIU) and communications regulator approved domestic access blocks for 27 websites tied to unregistered overseas exchanges, including KuCoin, MEXC, BingX, Phemex, XT.com, Bitrue, CoinW, Poloniex, BTCC and BitMart. The decision, disclosed on 13 Oct, extends earlier app-store restrictions on these platforms mobile apps, so Korean users now face controls at both the app and website level.

Under the Act on Reporting and Using Specified Financial Transaction Information and related rules, any exchange serving Korean users must obtain Information Security Management System certification and file with the FIU, even if it is based overseas and targets Koreans through Korean-language sites or won payments. Operating without registration can bring up to five years in prison or fines up to 50 million won, according to multiple reports on the FIU action.

Importantly, this is not a global shutdown or asset freeze. It is a domestic access restriction: services on Korean servers can be terminated, and overseas-hosted websites are blocked for Korean users while remaining reachable elsewhere.

2. Impact On Korean Users

For Koreans who already hold funds on the affected platforms, the website blocks can complicate reaching accounts and requesting withdrawals. The FIU has acknowledged that users may struggle to withdraw and says it plans to publish withdrawal guidance through local exchange association DAXA, with cooperation from the offshore platforms, but detailed procedures and timing are not yet clear.

Regulators frame the crackdown as investor protection. A June review cited in official summaries found many unregistered platforms charging trading fees between 1.5 percent and 10 percent, compared with roughly 0.16 percent at the largest registered won exchanges such as Upbit and Bithumb. Blocking high fee, unregulated venues is meant to steer users toward licensed platforms with lower costs and AML controls, though it reduces access to global liquidity and products.

3. Regulatory Trajectory And Next Steps

The access blocks sit within a wider tightening of South Koreas crypto regime that includes the Virtual Asset User Protection Act, upcoming detailed tax guidance ahead of a 22 percent tax on qualifying gains from 2027, and work on a comprehensive Digital Asset Basic Act. Authorities have already restricted credit card purchases on unregistered exchanges and referred 44 such businesses to investigative agencies.

Regulators have also signaled that they will monitor and block backup domains if targeted platforms try to reenter the market under new web addresses, and that they do not need to wait for confirmed user losses before acting. This suggests ongoing enforcement waves rather than a one off action, with a focus on pushing activity into a fully licensed, domestically supervised ecosystem.

Conclusion

South Koreas move to block access to 27 unregistered crypto exchange websites is a clear signal that regulators want trading routed through locally registered platforms with standardized security and AML controls. For Korean users, the immediate issues are withdrawal logistics and reduced offshore options, while for exchanges the message is that Korean facing services now require formal registration and compliance or risk being cut off from the market.