[Upbit Suspends Polkadot (DOT) Deposit and Withdrawal Services] Upbit has temporarily suspended Polkadot (DOT) deposit and withdrawal services due to a suspected security incident on the Polkadot (DOT) network, specifically involving the AssetHub Polkadot network. The suspension will last from the time of this announcement until the stability of deposits and withdrawals is confirmed, with a specific resumption time to be announced later. During this period, deposit returns and withdrawal address registration procedures will be paused, and related processes will be handled gradually after services resume.