South Korean cryptocurrency exchange Upbit has announced two separate temporary service disruptions affecting Starknet (STRK) and Cosmos (ATOM) tokens, each tied to network-related concerns. The exchange cited security and stability as the primary reasons, with STRK withdrawals pausing on July 5 and ATOM deposits and withdrawals halting on July 8.
Starknet Withdrawal Suspension
Scheduled for 2:00 p.m. UTC on July 5, 2025, the freeze on STRK withdrawals is a direct response to ongoing network issues on the Starknet blockchain. Upbit’s official notice did not disclose technical specifics but emphasized that the move is precautionary, aimed at protecting user transactions. While deposits are unaffected, the pause may cause temporary liquidity constraints for traders attempting to move tokens off the exchange.
Cosmos Deposit and Withdrawal Freeze
Separately, Upbit will suspend all ATOM deposits and withdrawals at 9:00 a.m. UTC on July 8 to accommodate a network upgrade on the Cosmos blockchain. Such halts are routine during protocol updates, as exchanges must align their systems with the new network specifications. No end time has been provided, though similar pauses typically last from a few hours to a full day. ATOM trading is expected to continue unaffected.
Both actions underscore the operational dependencies between centralized platforms and their underlying blockchain networks. For users, the suspensions are a short-term inconvenience, but Upbit’s proactive stance reflects its focus on asset security. Traders are advised to complete any necessary transfers ahead of the deadlines and monitor official announcements for service resumption timelines.
