South Korean regulators have implemented access blocking on Polymarket, deeming it to provide illegal betting

The Korea Communications Standards Commission (KCSC) held a meeting of the Communications Review Subcommittee and determined that the overseas prediction market platform Polymarket provided illegal betting, deciding to implement access blocking measures against it. The committee judged that Polymarket's business model is based on the outcomes of events that users cannot control, such as politics, sports, elections, and weather, adopting a "winner takes all" profit and loss structure that fosters speculative psychology; the platform operator is responsible for market establishment, trading rule setting, and overall operational management, providing a virtual asset acceptance and settlement system, which effectively creates an environment for raising and delivering user funds, and profits by charging transaction fees through share trading, violating South Korea's Criminal Law and the National Sports Promotion Act.

Polymarket argued that the platform operates based on non-custodial peer-to-peer trading and smart contracts, and does not directly raise funds, manage funds, or issue sports promotion voting rights. However, the committee responded that one cannot evade the applicability of domestic laws in South Korea based on technical characteristics such as whether Korean language services are provided, decentralized technology, or centralized trading interfaces. Given that the platform has actually provided illegal betting to South Korean users, access blocking is unavoidable to protect domestic users.