Upbit said on Aug. 22 that it had detected signs of a suspected security issue involving The Sandbox’s SAND network and urged users to trade with caution. The exchange said the situation, dated Aug. 22, 2026 in its notice, could lead to wider price swings in the market. It advised users holding SAND to closely monitor further developments before making trading decisions. Upbit has not disclosed specific details of the suspected attack or the scale of any losses. It only shared related on-chain transaction addresses for users to review. Earlier in the day, BlockBeats reported that SAND, the native token of The Sandbox on the Base network, was suspected to have suffered a serious security flaw that gave an attacker token minting authority, allowing arbitrary issuance of new SAND tokens.
Upbit issued a notice on Aug. 22 saying it had found signs of a suspected security problem involving The Sandbox’s SAND network and warned users to be careful when trading the token.
According to the exchange, the SAND network showed signs of a suspected security-related incident on Aug. 22, 2026. Upbit said the development could amplify price volatility in the market and advised users holding SAND to closely watch updates and proceed cautiously with trades.
Upbit did not disclose details of the suspected attack or the size of any losses. It only provided related on-chain transaction addresses for users to check.
Earlier in the day, BlockBeats reported that SAND, the native token of The Sandbox on the Base network, was suspected to have been hit by a serious security flaw. The attacker was said to have obtained token minting privileges, making it possible to mint SAND tokens arbitrarily.
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