Coincheck suspends cryptocurrency withdrawals due to external on-chain analysis service failure and cancels some pending requests.

Coincheck suspended new cryptocurrency withdrawal requests and canceled some pending withdrawals after an external on-chain analytics service failed, causing processing delays for deposits and withdrawals from 00:04 JST on November 5. The Japanese exchange said the incident involved no unauthorized access or loss of user assets, and funds tied to canceled requests were returned to users' Coincheck account balances. Deposit delays are ongoing, and the platform will reprocess held requests and announce a service restoration time once systems recover. The disruption highlights exchanges' operational dependence on third-party blockchain analytics providers. Watch for Coincheck's restoration notice and any backlog in deposit and withdrawal processing.