Wu Shuo learned from MultiversX official that it has confirmed an attacker attempted to exploit an atomicity issue at the mainnet virtual machine (VM) layer, resulting in invalid state changes on-chain. The network has been paused to prevent further expansion of impact. The engineering team has prepared a fix and is verifying it in a shadow fork environment, while also evaluating targeted recovery options to preserve normal transaction history and user states. The official advises users to not submit or rebroadcast transactions for now, and not to deposit or withdraw EGLD/ESDT via exchanges or cross-chain bridges. The specific losses and the final scope of impact have not yet been disclosed.