Upbit has added Zilliqa (ZIL) to its trading watchlist due to suspected unresolved security risks.

South Korean crypto exchange Upbit announced that Zilliqa (ZIL) has been added to its "Transaction Attention" asset list, with trading pairs including ZIL/KRW and ZIL/BTC. In line with South Korea’s Virtual Asset User Protection Act, Upbit stated it detected potential unaddressed or unrepaired security risks—such as hacking incidents—in ZIL’s wallet or the distributed ledger it relies on for issuance, transmission, and storage, which could lead to user losses. The platform therefore decided to implement risk warning measures. The notice specifies ZIL’s transaction attention period runs from July 22, 2026 to the third week of August (August 17–21). During this review period, Upbit will assess relevant risks per its trading support termination policy, and may choose to extend the observation period, lift the warning, or terminate trading support entirely. Additionally, ZIL deposit and withdrawal services were suspended earlier. Upbit noted that if services are resumed in the future, withdrawals will be prioritized for restoration only; a decision on resuming deposits will be announced separately based on subsequent review results. Currently, new deposits cannot be credited, and all related deposit transactions will be refunded.