The Sandbox: SAND cross-chain bridge has a vulnerability; Base and BSC cross-chain functions have been shut down
On August 22, The Sandbox officially confirmed that the SAND cross-chain bridge has a vulnerability. The incident affected the Base and BNB SmartChain networks; the impacted tokens account for less than 0.01% of the total SAND supply. SAND on Ethereum and Polygon is not affected, and users’ wallets were not compromised. The attacker exploited the vulnerability to mint uncollateralized SAND. The project team has shut down the cross-chain functions on both chains, isolated the related SAND assets, and reminds users not to trade this portion of the tokens. The team has completed an event snapshot and is working on a compensation plan for liquidity pool users. A full event recap report will be released later.