Syscoin cross-chain bridge遭遇攻击, involving approximately 5 billion SYS, bridge service has been suspended

Syscoin posted on platform X to provide the community with a preliminary update regarding the recent cross-chain bridge security incident involving 5 billion SYS tokens. The bridging service has been suspended, and the team is investigating and fixing the validation issues. The attacker exploited a validation vulnerability in the cross-chain bridge process to create unauthorized SYS outputs on the UTXO side.

The affected funds have been transferred and split, and the team is tracking and coordinating with exchanges and ecosystem partners to prevent the contaminated UTXOs from being deposited, traded, or further distributed. The team has identified a fix and advises users not to interact with the cross-chain bridge until it is restored.