Bitbank to Terminate Accounts Linked to Crypto Prediction Markets

The Japanese cryptocurrency exchange Bitbank has officially announced a strict policy targeting users who interact with decentralized prediction platforms. In a recent statement, the Tokyo-based trading venue confirmed it will suspend accounts found to be involved in financial transfers to or from services such as Polymarket. This move underscores the tightening regulatory environment in Japan regarding digital asset gambling and unauthorized offshore betting activities.

Regulatory Compliance and Gambling Concerns

The decision by Bitbank stems from the legal interpretation of prediction markets under Japanese law. According to local media outlet CoinPost, Bitbank highlighted that accessing overseas decentralized applications (dApps) to gain economic benefits through betting on outcomes may be classified as illegal gambling within Japan. Despite the decentralized nature of these platforms, the exchange maintains that facilitating the movement of funds to such entities violates its internal compliance standards.

• Bitbank will monitor both deposit and withdrawal histories for suspicious patterns.
• Affected users will lose access to all platform features, including Japanese yen (JPY) trading.
• The ban applies to interactions with offshore decentralized platforms even if they lack a physical presence in Japan.

Implications for Bitbank Users

Once a violation is detected, the exchange will implement a total freeze on the user's profile. This enforcement action is comprehensive, preventing individuals from executing trades, accessing their cryptocurrency wallets, or logging into the interface. Bitbank has explicitly stated that it will not assume liability for any financial losses or opportunity costs incurred as a result of these account closures. This measure is part of a broader trend where Virtual Asset Service Providers (VASPs) are increasing their scrutiny of "High-Risk" transactions to maintain their licenses with the Financial Services Agency (FSA).

As the landscape for Web3 and decentralized finance (DeFi) evolves, Japanese exchanges are becoming more proactive in distancing themselves from unregulated betting ecosystems. This policy serves as a significant warning to domestic investors who use Ethereum-based or other blockchain-linked prediction tools while maintaining accounts on regulated local exchanges. The enforcement highlights the growing friction between the permissionless nature of blockchain protocols and the strict jurisdictional requirements of national financial regulators.