Exchanges Halt SAND Trading After Suspected 500M+ Token Minting Exploit

On August 22, 2026, South Korea's two largest cryptocurrency exchanges, Upbit and Bithumb, took action after on-chain monitoring flagged a suspected exploit involving the SAND token on the Base network. Upbit issued a trading caution to users, while Bithumb went further, suspending both deposits and withdrawals of SAND to limit potential damage.

The incident reportedly involved the minting of more than 500 million tokens outside of normal issuance, a red flag that typically indicates a smart contract vulnerability or compromised minting authority has been exploited. Such incidents can cause sudden token oversupply, price crashes, and losses for holders and traders caught unaware.

While this event centres on cryptocurrency infrastructure rather than traditional business systems, it highlights a broader lesson: attackers continue to target weaknesses in digital platforms wherever value is stored, including blockchain-based assets. Businesses that hold or transact in cryptocurrencies should stay alert to exchange advisories and treat sudden trading suspensions as a signal to pause and verify before acting.