Upbit, one of South Korea's largest cryptocurrency exchanges, will suspend deposits and withdrawals of Cosmos (ATOM) on the Cosmos Hub network starting at 8:00 PM Korea time on October 28, according to an official announcement issued by the exchange on Monday, October 26.

The suspension applies exclusively to ATOM on the Cosmos Hub network and will remain in force until Upbit confirms that the upgraded network is stable, the exchange said. Upbit routinely imposes such suspensions around network upgrades as a precautionary measure, a common practice among digital asset exchanges intended to prevent transaction errors, lost funds, or replay attacks while a blockchain's underlying software is updated. For users, the practical effect is a temporary pause window: ATOM transfers routed through the Cosmos Hub will not be processed during the suspension, so deposits and withdrawals need to be completed before the stated start time to clear ahead of the pause.

Cosmos (ATOM) is the native token of the Cosmos Hub, the central blockchain of the Cosmos ecosystem, which enables interoperability between independent blockchains through the Inter-Blockchain Communication (IBC) protocol. The Cosmos Hub is upgraded periodically through on-chain governance proposals approved by ATOM holders, which is why operational steps like Upbit's suspension are coordinated around upgrades adopted through the network's governance process.

Deposits and withdrawals will resume once the exchange determines that the network upgrade has been completed safely; Upbit typically announces the resumption through a follow-up notice. The announcement did not include an expected duration for the suspension, making that follow-up notice the place where the resumption time will first appear.

This content was first published on COINOTAG.